n
(mineralogy) Synonym of clinoclase
n
(mineralogy) A basaltic-trachyandesite rock containing phenocrysts of olivine and augite
n
(mineralogy, outdated) A mineral, (Ca,Y)₅(P,Si)₃O₁₂(OH,F), that can contain uranium or thorium. The mineral was renamed britholite-(Y) in 1966 because of its similarity to britholite and because of its yttrium-dominant composition.
n
(mineralogy) A primitive achondrite composed of fine-grained olivine, orthopyroxene, plagioclase and troilite.
n
(mineralogy) A colourless form of tourmaline
n
(mineralogy, dated) actinolite.
n
(mineralogy) Any of several basic oxide minerals of mostly titanium and niobium with either cerium, neodymium or yttrium.
n
(mineralogy) A soft, compact stone, of a grayish, greenish, or yellowish color, carved into images by the Chinese, and hence called figure stone, and pagodite. It is probably a variety of pinite.
n
(countable, uncountable, mineralogy) A semitransparent, uncrystallized silicate mineral and semiprecious stone, presenting various tints in the same specimen, with colors delicately arranged and often curved in parallel alternating dark and light stripes or bands, or blended in clouds; various authorities call it a variety of chalcedony, a variety of quartz, or a combination of the two.
n
(mineralogy) A monoclinic iron(III) oxide-hydroxide/chloride mineral formed by the weathering of pyrrhotite.
n
(mineralogy) A trigonal-pyramidal grayish black mineral containing arsenic, copper, mercury, and sulfur.
n
(mineralogy) A lead-silicon mineral found in Mexico.
n
(mineralogy) Any of a group of silicate minerals that are a source of rare earth metals.
n
Alternative form of almandine [(mineralogy) A type of garnet having a deep red color, inclining to purple, with the chemical formula Fe₃Al₂(SiO₄)₃.]
n
(mineralogy) An aragonite mineral consisting of an isomorphous mixture of calcium and barium carbonates.
n
(mineralogy) A triclinic-pinacoidal yellow mineral containing aluminum, hydrogen, oxygen, phosphorus, thorium, and uranium.
n
(mineralogy) A monoclinic-prismatic white mineral containing aluminum, chlorine, oxygen, potassium, silicon, sodium, and titanium.
adj
(mineralogy) Describing minerals containing aluminium cations
n
(mineralogy) A form of copiapite containing varying amounts of aluminium in place of ferric iron.
n
(mineralogy) An isometric-hextetrahedral white mineral containing aluminum, arsenic, hydrogen, oxygen, and potassium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, nickel, oxygen, vanadium, and zinc.
n
(mineralogy) A fine-grained form of sovite
n
(mineralogy) A silicate of hafnium, thorium and zirconium
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing beryllium, calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A tetragonal-dipyramidal white mineral containing aluminum, hydrogen, nitrogen, oxygen, potassium, and silicon.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing aluminum, calcium, chlorine, hydrogen, oxygen, and silicon.
n
A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, especially agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
n
(mineralogy) An olivine- and hornblende-bearing pyroxenite mineral.
n
(geology) Any of a class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar.
n
(mineralogy) A white mineral containing antimony, lead, silver, and sulfur.
n
A nesosilicate mineral of the garnet group with chemical formula Ca₃Fe₂Si₃O₁₂.
n
(mineralogy) A monoclinic mineral with vitreous lustre, having the chemical formula KCdCu₅[H₂AsO₄|(AsO₄)₄]·2H₂O.
n
(geology) A specific type of volcanic rock
n
(mineralogy) Any of a group of mixed carbonate minerals, principally of calcium with iron, magnesium and manganese.
n
(mineralogy) A phyllosilicate mineral related to biotite.
n
(mineralogy) A triclinic-pinacoidal blue green mineral containing hydrogen, oxygen, sulfur, and vanadium.
n
(petrology) A phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar.
n
(mineralogy) A monoclinic mineral containing chlorine, copper, hydrogen, and oxygen.
n
(mineralogy) A soft and earthy mineral of a white or yellowish color, and with a waxy lustre, found at Langbanshytta in Sweden. It is a hydrated silicate of magnesia, and resembles meerschaum.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, manganese, oxygen, and sulfur.
n
(mineralogy) A pink trigonal mineral containing calcium, chlorine, hydrogen, potassium, sodium, oxygen, silicon, strontium and zirconium.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing aluminum, fluorine, hydrogen, lead, and oxygen.
n
(mineralogy) A sulfosalt mineral occurring with cryolite in Greenland.
n
(mineralogy) A monoclinic green gray mineral containing antimony, chlorine, lead, and sulfur.
n
(mineralogy) A monoclinic-domatic mineral containing calcium, hydrogen, oxygen, phosphorus, and sulfur.
n
(mineralogy) An isometric-hextetrahedral mineral containing antimony, arsenic, copper, iron, silver, sulfur, and zinc.
n
(mineralogy) A germanium dioxide mineral.
n
(mineralogy) Synonym of brookite
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, calcium, hydrogen, iron, and oxygen.
n
(mineralogy) A hydrated magnesium carbonate mineral that forms white silky monoclinic prismatic crystals.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, fluorine, hydrogen, iron, magnesium, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) A rare metallic compound usually associated with palladium–gold deposits, chemically similar to graphite.
n
(mineralogy) A mineral with monoclinic crystals of the chemical formula Al₂(PO₄)(OH)₃.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, hydrogen, manganese, oxygen, and silver.
n
(mineralogy) Synonym of hydrohausmannite
n
A yellow-green mineral of the chlorite group with the mineral formula (Zn,Fe,Al,Mg)₆(Si,Al)₄O₁₀(OH)₈.
n
(mineralogy) A soft mineral containing hydrogen, magnesium, oxygen, phosphorus, and sodium.
n
(mineralogy) A triclinic mineral containing hydrogen, iron, molybdenum, and oxygen.
n
(petrology) granodiorite or rock of similar composition that intruded in the Banat region of Europe in the Cretaceous
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, iron, magnesium, manganese, oxygen, potassium, silicon, sodium, and zinc.
n
(mineralogy) A triclinic colorless mineral containing aluminum, carbon, fluorine, hydrogen, oxygen, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, magnesium, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-sphenoidal mineral containing aluminum, hydrogen, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, oxygen, phosphorus, and uranium.
n
(mineralogy) A mineral containing aluminum, calcium, hydrogen, oxygen, and phosphorus.
n
(mineralogy) A mixture of minerals, principally chromates and silicates of lead and arsenic
n
One of the minute acicular or dendritic crystalline forms sometimes observed in glassy volcanic rocks.
n
(mineralogy) An amorphous mineral containing calcium, hydrogen, niobium, oxygen, titanium, and zirconium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, fluorine, hydrogen, iron, magnesium, manganese, oxygen, phosphorus, potassium, sodium, and titanium.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal white mineral containing lithium, oxygen, potassium, silicon, and titanium.
n
(mineralogy) A monoclinic-sphenoidal mineral containing hydrogen, manganese, oxygen, and phosphorus.
n
(mineralogy) A rare tin sulfide mineral.
n
(mineralogy) An isometric-hexoctahedral mineral containing arsenic, calcium, magnesium, manganese, oxygen, and sodium.
n
(mineralogy) A trigonal-hexagonal scalenohedral mineral containing arsenic, hydrogen, iron, lead, oxygen, and sulfur.
adj
(mineralogy) Describing minerals that contain trivalent bismuth
n
(geology) A form of mylonite that has extensive recrystallization of its constituent minerals
n
(mineralogy) A monoclinic-prismatic mineral containing bismuth, calcium, chlorine, copper, hydrogen, iron, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, chlorine, hydrogen, lead, and oxygen.
n
(mineralogy) An evaporite consisting of a mixed sodium and magnesium sulphate, with the chemical formula Na₂Mg(SO₄)₂·4H₂O.
n
(mineralogy) A monoclinic-prismatic black mineral containing aluminum, hydrogen, iron, oxygen, and vanadium.
n
(mineralogy) An amorphous mineral containing aluminum, calcium, fluorine, hydrogen, magnesium, oxygen, and sodium.
n
(alchemy) The phosphorescent form of baryte.
n
(mineralogy) A monoclinic-prismatic mineral containing carbon, iron, oxygen, phosphorus, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, boron, oxygen, and silicon.
adj
(mineralogy) Describing minerals that contain trivalent borate BO₃³⁻ anions
n
A green monoclinic copper mineral, polymorphous with atacamite, paratacamite, and clinoatacamite.
n
An opal consisting of concretions and fracture fillings in a dark siliceous ironstone matrix.
n
(mineralogy) A monoclinic-prismatic white mineral containing hydrogen, magnesium, oxygen, sulfur, and zinc.
n
(mineralogy) A monoclinic-sphenoidal mineral containing calcium, oxygen, phosphorus, and thorium.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, lead, manganese, oxygen, vanadium, and zinc.
n
(mineralogy) A monoclinic-prismatic mineral containing carbon, magnesium, oxygen, phosphorus, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, cerium, iron, oxygen, titanium, and uranium.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal colorless mineral containing lithium, oxygen, potassium, silicon, and tin.
n
(mineralogy) A silicate mineral containing divalent and trivalent manganese and forming grey-black tetragonal crystals.
n
(mineralogy) An orthorhombic-pyramidal mineral containing calcium, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic brownish gray mineral containing chromium and sulfur.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing carbon, hydrogen, oxygen, sulfur, and zinc.
n
The magnesium iron and calcium silicates (Mg,Fe)SiO₃ and CaSiO₃, which have a perovskite structure and are mainly found in the lower part of the mantle.
n
(mineralogy) A monoclinic-sphenoidal yellow green mineral containing aluminum, hydrogen, iron, magnesium, nickel, oxygen, and silicon.
n
(mineralogy) An isometric-hexoctahedral mineral containing germanium, iron, and oxygen.
n
(mineralogy) A cyclosilicate mineral related to tourmaline.
n
(mineralogy) An iron arsenate sulfate mineral that forms nodules with a reniform surface.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, fluorine, hydrogen, oxygen, and silicon.
n
(mineralogy) A trigonal-rhombohedral colorless mineral containing calcium, hydrogen, oxygen, and tin.
n
(mineralogy) A trigonal-ditrigonal pyramidal light violet gray mineral containing aluminum, boron, calcium, hydrogen, iron, oxygen, silicon, and sulfur.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, manganese, oxygen, and silicon.
n
(mineralogy) An olive-green fibrous variety of hornblende.
n
(mineralogy) A plagioclase feldspar, the fifth member of the Albite-Anorthite solid solution series. Bytownite is rare, and normally occurs in small grains in lime-rich igneous rocks. Clear pale yellow crystals have come from Mexico and Oregon.
n
(mineralogy) A similar variety of opal.
n
(mineralogy) An isometric-hexoctahedral mineral containing cadmium, germanium, indium, iron, sulfur, and zinc.
n
(mineralogy) The zinc silicate mineral hemimorphite.
n
(mineralogy) A monoclinic-prismatic white mineral containing aluminum, calcium, fluorine, hydrogen, oxygen, sodium, and strontium.
n
(mineralogy) A monoclinic honey yellow mineral containing calcium, hydrogen, molybdenum, oxygen, and uranium.
n
(mineralogy) A monoclinic-sphenoidal mineral containing copper, hydrogen, manganese, oxygen, and sulfur.
n
(mineralogy) A dark variety of spinel.
n
(mineralogy) A rare silver tin sulfide mineral.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing boron, calcium, carbon, hydrogen, magnesium, and oxygen.
adj
(mineralogy) Describing minerals that contain carbon
n
(mineralogy) A trigonal-pyramidal mineral containing sulfur and thallium.
n
(mineralogy) A rare oxide mineral discovered in 2019, with the chemical formula ZrAl₂Ti₄O₁₁.
n
(mineralogy) A monoclinic-prismatic mineral containing chromium, hydrogen, iron, oxygen, and titanium.
n
(mineralogy) A monoclinic mineral containing arsenic, chlorine, hydrogen, iron, magnesium, manganese, oxygen, silicon, and zinc.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, hydrogen, magnesium, nickel, oxygen, and phosphorus.
n
(mineralogy) A resinous form of biotite
n
(mineralogy) A triclinic-pinacoidal colorless mineral containing hydrogen, iron, magnesium, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, hydrogen, oxygen, silicon, and vanadium.
n
(mineralogy) An orthorhombic-dipyramidal colorless mineral containing calcium, manganese, oxygen, potassium, silicon, and vanadium.
n
(mineralogy) An orthorhombic-dipyramidal black mineral containing hydrogen, iron, lead, manganese, oxygen, and vanadium.
n
(mineralogy) An orthorhombic-pyramidal mineral containing antimony and oxygen.
n
Obsolete form of chalcedony. [A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.]
n
(mineralogy) Alternative form of chamosite [(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, iron, magnesium, oxygen, and silicon.]
n
(mineralogy) A hexagonal-dihexagonal dipyramidal dark blue mineral containing iron, magnesium, oxygen, potassium, and silicon.
n
(mineralogy) A technogenic crystalline zirconium silicate containing uranium as a solid solution, discovered in the corium produced by the Chernobyl nuclear accident.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, barium, hydrogen, oxygen, silicon, sodium, and vanadium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, antimony, boron, iron, magnesium, and oxygen.
n
(mineralogy) A rock formed by contact metamorphism of carbonaceous shale, characterized by prominent cleavage or schistosity and the presence of conspicuous chiastolite crystals in a fine-grained groundmass.
n
(mineralogy) A dark green mineral resembling serpentine, being a mixed silicate of magnesium, iron and aluminium.
n
(mineralogy) A rare white mineral, chemical formula KCaCl₃.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, mercury, sulfur, and thallium.
adj
(mineralogy) Describing minerals that contain chromate anions
n
(mineralogy) A hydrated cerium/calcium phosphate.
n
(mineralogy) A monoclinic-prismatic gray mineral containing hydrogen, magnesium, manganese, oxygen, and zinc.
n
(mineralogy) An orthorhombic-dipyramidal black mineral containing antimony, manganese, and sulfur.
n
(mineralogy) A crichtonite composed of basic titanates
n
(mineralogy) A monoclinic-prismatic colorless mineral containing antimony and oxygen.
n
(mineralogy) Synonym of clinoclase
n
(mineralogy) Synonym of clinohedrite
n
(mineralogy) A monoclinic-prismatic mineral containing iron, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic light gray mineral containing boron, calcium, iron, magnesium, manganese, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, chlorine, lead, and oxygen.
n
(mineralogy) A monoclinic mineral containing calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A calcium magnesium aluminium phyllosilicate mineral of the margarite group of micas.
n
(mineralogy) A monoclinic-prismatic brown mineral containing arsenic, calcium, cobalt, hydrogen, iron, nickel, and oxygen.
n
(mineralogy) An orthorhombic mineral containing bromine, chlorine, mercury, and oxygen.
n
(mineralogy) A rare hexagonal hydrous copper chlorosulfate mineral.
n
(mineralogy) A triclinic-pinacoidal mineral containing antimony, hydrogen, oxygen, and sulfur.
n
(mineralogy) A magnesium iron aluminium cyclosilicate.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, oxygen, potassium, sodium, and vanadium.
n
(mineralogy) A mineral form of lead chloride (PbCl₂) formed by alteration of galena.
n
(mineralogy) A monoclinic-sphenoidal mineral containing carbon, oxygen, phosphorus, sodium, and strontium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, copper, hydrogen, iron, lead, oxygen, and silicon.
n
(mineralogy) A dark grey mineral that is a mixed oxide of copper and manganese.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, hydrogen, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic black mineral containing antimony, gold, silver, sulfur, and thallium.
n
(mineralogy) A trigonal coal black mineral containing calcium, chromium, hydrogen, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, fluorine, hydrogen, oxygen, and silicon.
n
(mineralogy) A tetragonal-trapezohedral mineral containing hydrogen, iron, oxygen, phosphorus, and sodium.
n
(geology) An igneous, volcanic rock with a high iron content.
n
(mineralogy) A monoclinic-prismatic white mineral containing carbon, hydrogen, magnesium, and oxygen.
n
(mineralogy) A borosilicate of lime commonly occurring in glassy, greenish crystals, with the chemical formula CaBSiO₄(OH).
n
(mineralogy) A triclinic-pinacoidal orange red mineral containing chromium, mercury, oxygen, and sulfur.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, calcium, chlorine, fluorine, hydrogen, oxygen, potassium, silicon, sodium, and sulfur.
n
(mineralogy) A monoclinic-prismatic gray pink mineral containing aluminum, barium, hydrogen, iron, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) A monoclinic-prismatic pinkish red mineral containing aluminum, calcium, hydrogen, iron, lithium, magnesium, manganese, nickel, oxygen, potassium, silicon, sodium, titanium, and zinc.
n
(mineralogy) A yellow or brown amorphous mineral, sometimes forming a botryoidal mass or stalactites.
n
(mineralogy) A monoclinic mineral containing calcium, fluorine, hydrogen, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic brownish black mineral containing arsenic, silver, and sulfur.
n
(mineralogy) A hexagonal-ditrigonal dipyramidal lemon mineral containing calcium, hydrogen, manganese, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, copper, hydrogen, oxygen, and sulfur.
n
(minerals) Rhodochrosite.
n
(mineralogy) A monoclinic-domatic mineral containing aluminum, calcium, hydrogen, iron, lithium, manganese, oxygen, phosphorus, potassium, and sodium.
n
(mineralogy) An isometric-hextetrahedral gray white mineral containing arsenic and nickel.
n
(geology) Alternative form of dictyonite [(geology) A reticulated form of migmatite]
n
(mineralogy) An orthorhombic-dipyramidal orange mineral containing arsenic and sulfur.
n
(mineralogy) Synonym of sorosilicate
n
(mineralogy) An orthorhombic-pyramidal colorless mineral containing hydrogen, magnesium, nitrogen, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, oxygen, and vanadium.
n
(geology) A form of diabase
n
(mineralogy) An orthorhombic-dipyramidal yellow orange mineral containing magnesium, manganese, oxygen, and silicon.
n
(mineralogy) A trigonal-hexagonal scalenohedral golden yellow mineral containing hydrogen, iron, oxygen, potassium, sulfur, and thallium.
n
(mineralogy) An orthorhombic white mineral containing hydrogen, oxygen, phosphorus, and sodium.
n
(mineralogy) A triclinic mineral containing aluminum, calcium, iron, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-domatic mineral containing aluminum, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, iron, lead, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic white mineral containing hydrogen, iron, nickel, oxygen, and sulfur.
n
(mineralogy) An orthorhombic-pyramidal mineral containing antimony and silver.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, iron, magnesium, manganese, oxygen, and phosphorus.
n
(petrology) A coarse-grained metamorphic rock, a mixture of pyroxene, quartz, and feldspar with inclusions of red garnet.
n
A particular zeolite mineral.
n
(mineralogy) An isometric-tetartoidal mineral containing hydrogen, magnesium, nitrogen, oxygen, and sulfur.
n
(mineralogy) A variety of pseudomalachite; a green pearly mineral, hydrous phosphate of copper.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal mineral containing magnesium, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A hexagonal-pyramidal mineral containing boron, calcium, chlorine, hydrogen, and oxygen.
n
(mineralogy) A hexagonal-dihexagonal pyramidal brownish black mineral containing arsenic, hydrogen, iron, oxygen, silicon, and zinc.
n
Alternative form of eclogite [(petrology) A coarse-grained metamorphic rock, a mixture of pyroxene, quartz, and feldspar with inclusions of red garnet.]
n
(mineralogy) A subgroup of pyrobitumens rich in oxygen and partly soluble in alkali, resembling an earthy brown coal and probably representing a product of intense weathering of bitumens.
n
(mineralogy) A form of pyroxene consisting solely of magnesium silicate.
n
(mineralogy) An orthorhombic-pyramidal mineral containing boron, chlorine, iron, magnesium, manganese, and oxygen.
n
(mineralogy) A hydrous copper arseniate of an emerald-green colour.
n
(mineralogy) A rare mineral, containing chiefly niobium, titanium, thorium, and cerium.
n
(mineralogy) A monoclinic-prismatic blue green mineral containing aluminum, arsenic, calcium, fluorine, hydrogen, oxygen, and sodium.
n
(mineralogy) A trigonal hydrous calcium aluminium sulfate mineral.
adj
(mineralogy) Describing minerals containing trivalent europium
adj
(mineralogy) Describing minerals containing divalent europium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, barium, calcium, chlorine, fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, rubidium, silicon, sodium, strontium, tantalum, titanium, and zirconium.
n
(mineralogy) A triclinic-pinacoidal colorless mineral containing boron, hydrogen, oxygen, and sodium.
n
(mineralogy) A rare pegmatitic phosphate mineral with the formula Ca₂MgMn²⁺₂(Fe²⁺_(0.5)Fe³⁺_(0.5))₄Zn₄(PO₄)₈(OH)₄(H₂O)₁₄.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, sulfur, and thallium.
n
(mineralogy) A trigonal-ditrigonal pyramidal mineral containing calcium, cerium, chlorine, fluorine, hafnium, hydrogen, iron, lanthanum, manganese, niobium, oxygen, silicon, sodium, strontium, titanium, and zirconium.
adj
(mineralogy) Resembling a feldspar.
n
(mineralogy) A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals.
n
(mineralogy) A trigonal-ditrigonal pyramidal mineral containing aluminum, barium, carbon, chlorine, hydrogen, iron, oxygen, and silicon.
n
(mineralogy) A triclinic mineral containing hydrogen, iron, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, hydrogen, iron, magnesium, manganese, oxygen, silicon, and titanium.
n
(mineralogy) A monoclinic-prismatic black mineral containing aluminum, calcium, hydrogen, iron, oxygen, silicon, sodium, and titanium.
n
(mineralogy) A dark green iron mineral related to kinoshitalite.
n
(mineralogy) A monoclinic-prismatic mineral containing iron, oxygen, tantalum, and titanium.
n
(mineralogy) An isometric-diploidal mineral containing carbon, iron, oxygen, sodium, and sulfur.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, cerium, fluorine, hydrogen, niobium, oxygen, sodium, tantalum, thorium, titanium, and yttrium.
n
(mineralogy) A trigonal-ditrigonal pyramidal mineral containing aluminum, boron, calcium, hydrogen, iron, magnesium, oxygen, silicon, sodium, and titanium.
n
(mineralogy) A monoclinic-sphenoidal grayish white mineral containing antimony, arsenic, copper, iron, lead, mercury, silver, sulfur, and thallium.
n
(mineralogy) A trigonal-rhombohedral mineral containing hydrogen, iron, oxygen, and sulfur.
n
(mineralogy) A trigonal-rhombohedral mineral containing calcium, iron, manganese, oxygen, phosphorus, and sodium.
n
(mineralogy) A hexagonal-pyramidal mineral containing arsenic, chlorine, lead, and oxygen.
n
Any transparent to translucent opal with a warm body colour of yellow, orange, or red.
n
Synonym of pyrostilpnite
n
(mineralogy) An isometric-gyroidal silver white mineral containing gold, selenium, and silver.
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, calcium, hydrogen, manganese, and oxygen.
n
(mineralogy) A fluorine-rich variety of phlogopite.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing aluminum, calcium, fluorine, hydrogen, iron, magnesium, manganese, oxygen, and silicon (a fluorine analog of vesuvianite.
n
(geology) A course-grained intrusive igneous rock where most light-coloured minerals are feldspathoids.
n
(mineralogy) A monoclinic-prismatic brownish yellow mineral containing niobium, oxygen, tantalum, and tin.
n
(mineralogy) A rare monoclinic-prismatic lead copper chromate arsenate hydroxide mineral, which is generally green to yellow and translucent to transparent, and has a Mohs hardness of 2.3, a specific gravity of 6.27, and a Strunz classification of 7.FC.10.
n
(mineralogy) A white variety of olivine that is mostly magnesium silicate, Mg₂SiO₄.
n
(mineralogy) A white orthorhombic silicate Mg₂SiO₄ that is usually found in isomorphic mixtures with fayalite to form olivine, chrysolite, or peridot.
n
(mineralogy) A monoclinic-prismatic snow white mineral containing calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing barium, hydrogen, lead, oxygen, uranium, and vanadium.
n
(mineralogy) A monoclinic white mineral containing hydrogen, niobium, oxygen, and sodium.
n
(mineralogy) A triclinic-pedial mineral containing calcium, fluorine, hydrogen, manganese, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A monoclinic-sphenoidal dark brown mineral containing aluminum, calcium, hydrogen, iron, manganese, oxygen, silicon, and zinc.
n
(mineralogy) A complex cubic sulfosalt mineral of silver, copper, iron, antimony, and arsenic.
n
(mineralogy) A tetragonal-ditetragonal pyramidal mineral containing barium, oxygen, silicon, and titanium.
n
(mineralogy) A mineral comprising mostly calcium, oxygen, and silicon.
n
(mineralogy) A compact variety of scapolite, resembling gabbro.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal blue mineral containing beryllium, calcium, cesium, hydrogen, iron, lithium, oxygen, phosphorus, potassium, sodium, and zirconium.
n
(mineralogy) A trigonal-rhombohedral mineral containing iron, oxygen, phosphorus, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, barium, hydrogen, iron, magnesium, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) A green nickel ore found in fissures of weathered ultramafic rocks
n
(mineralogy) A tetragonal-dipyramidal mineral containing aluminum, calcium, hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A triclinic mineral containing arsenic, carbon, copper, hydrogen, iron, lead, oxygen, and sulfur.
n
(mineralogy) A monoclinic mineral with formula CaCe₃Al₂(Al,Mg)(Mg,Fe2+,Al)(Si₂O₇)(SiO₄)₃(O,F)(OH,O)₂
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, hydrogen, manganese, and oxygen.
n
(mineralogy) A vitreous, brittle, yellow mineral with the chemical formula Na₆CaMg(IO₃)6(CrO₄)₂(H₂O)₁₂.
n
(mineralogy) A triclinic mineral containing aluminum, arsenic, hydrogen, oxygen, and zinc.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, magnesium, manganese, oxygen, silicon, and zinc.
n
(mineralogy) A monoclinic-prismatic mineral containing antimony, arsenic, and sulfur.
n
(mineralogy) An isometric-hextetrahedral mineral containing mercury, nitrogen, oxygen, and sulfur.
n
(mineralogy) A mineral with monoclinic crystals, usually white but can have different colors, Al(OH)₃.
n
(mineralogy) A particular kind of muscovite.
n
(mineralogy) A monoclinic-prismatic mineral containing antimony, arsenic, sulfur, and thallium.
n
(mineralogy) An isometric-hextetrahedral mineral containing antimony, arsenic, copper, selenium, silver, sulfur, and zinc.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, carbon, hydrogen, magnesium, oxygen, phosphorus, and sodium.
n
(mineralogy) An isometric-hextetrahedral mineral containing antimony, arsenic, copper, sulfur, and tellurium.
n
(mineralogy) A monoclinic-sphenoidal mineral containing aluminum, calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A trigonal-pyramidal mineral containing chlorine, hydrogen, oxygen, sodium, sulfur, and zinc.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-dipyramidal colorless mineral containing aluminum, calcium, hydrogen, magnesium, oxygen, silicon, and sodium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing copper, hydrogen, oxygen, and tellurium.
n
(petrology) A group of igneous and plutonic rocks composed primarily of feldspar and quartz. Usually contains one or more dark minerals, which may be mica, pyroxene, or amphibole. Granite is quarried for building stone, road gravel, decorative stone, and tombstones. Common colors are gray, white, pink, and yellow-brown.
n
(geology) A fine-grained metamorphic rock composed chiefly of feldspar, quartz, and garnets.
n
(mineralogy) A hexagonal-trapezohedral mineral containing calcium, hydrogen, lead, oxygen, phosphorus, and thorium.
n
Alternative form of greywacke [(geology) A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.]
n
(mineralogy) A rare cadmium mineral that consists of cadmium sulfide in crystalline form.
n
(mineralogy) A mineral, lithium fluoride, that occurs as white aggregates in other minerals, such as fluorite.
n
(mineralogy) A trigonal-hexagonal scalenohedral mineral containing chromium, hydrogen, and oxygen.
n
A vitreous, resinous, yellow or dark-brown, molecular compound that is both diploidal and isometric.
n
(mineralogy) An orthorhombic-dipyramidal dark reddish brown mineral containing arsenic, calcium, hydrogen, iron, manganese, oxygen, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, and oxygen.
n
(mineralogy) An orthorhombic-pyramidal mineral containing hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing bismuth and selenium.
n
(mineralogy) A monoclinic-prismatic grayish black mineral containing antimony, arsenic, lead, and sulfur.
n
(mineralogy) A form of dolomite.
n
(mineralogy) synadelphite
adj
(mineralogy) Describing minerals containing hafnium.
n
(mineralogy) A monoclinic-prismatic white mineral containing hydrogen, iron, oxygen, phosphorus, and potassium.
n
(mineralogy) An orthorhombic-disphenoidal mineral containing calcium, fluorine, hydrogen, iron, magnesium, manganese, niobium, oxygen, potassium, silicon, sodium, sulfur, titanium, and zirconium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing beryllium, boron, hydrogen, and oxygen.
n
(mineralogy) A triclinic-pinacoidal yellow mineral containing hydrogen, magnesium, nitrogen, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-pyramidal mineral containing aluminum, barium, calcium, oxygen, silicon, strontium, and vanadium.
n
A jadeite mineral gemstone.
n
(mineralogy) A trigonal-hexagonal scalenohedral colorless mineral containing aluminum, boron, calcium, carbon, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing barium, chromium, oxygen, and sulfur.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal mineral containing carbon, hydrogen, iron, magnesium, manganese, oxygen, sulfur, and zinc.
n
(mineralogy) A manganese sulfide mineral, MnS₂, that forms reddish-brown or black octahedral crystals.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing boron, calcium, chlorine, hydrogen, oxygen, sodium, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, barium, hydrogen, oxygen, and uranium.
n
(mineralogy) A monoclinic-prismatic light blue mineral containing carbon, hydrogen, nickel, and oxygen.
n
(mineralogy) A trigonal-pyramidal mineral containing aluminum, arsenic, hydrogen, magnesium, manganese, and oxygen.
n
(mineralogy) A triclinic-pinacoidal mineral containing chromium, fluorine, lead, oxygen, silicon, and zinc.
n
(mineralogy) An isometric-hexoctahedral black mineral containing aluminum, iron, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing beryllium, calcium, fluorine, oxygen, and phosphorus.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal black mineral containing manganese, oxygen, and zinc.
n
(mineralogy) A monoclinic-prismatic black mineral containing antimony, lead, and sulfur.
n
Alternative form of heterosite. [(mineralogy) An orthorhombic-dipyramidal mineral containing iron, oxygen, and phosphorus.]
n
(mineralogy) An isometric-hexoctahedral mineral containing fluorine, potassium, and silicon.
n
(mineralogy) A tetragonal-scalenohedral brownish gray mineral containing iron, silver, sulfur, and tin.
n
(mineralogy) A monoclinic white mineral containing calcium, hydrogen, niobium, oxygen, sodium, and strontium.
n
(mineralogy) A monoclinic mineral containing magnesium, oxygen, and tungsten.
n
Alternative form of humboldtilite [(mineralogy) A variety of melilite with chemical formula (Ca,Na)₂(Si,Mg,Al)₃O₇.]
n
Alternative form of hureaulite [(mineralogy) A manganese phosphate mineral occurring in granite pegmatites.]
n
(mineralogy) A monoclinic crystalline mineral, a barium-rich potassium feldspar.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, barium, beryllium, boron, calcium, chlorine, copper, fluorine, iron, lead, magnesium, manganese, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, hydrogen, iron, magnesium, oxygen, potassium, and silicon.
n
(mineralogy) A form of lead carbondate, a trigonal-ditrigonal pyramidal mineral containing carbon, hydrogen, lead, and oxygen.
n
(mineralogy) An orthorhombic snow white mineral containing calcium, hydrogen, oxygen, sodium, and sulfur.
n
A variety of garnet sometimes used as a gemstone.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal white mineral containing hydrogen, oxygen, and tin.
n
(mineralogy) A microlite mineral that is a basic tantalate of sodium and tin
adj
(mineralogy) Describing any mineral that whose components have free hydroxyl groups
n
(mineralogy) A mixture of clay minerals and iron oxides formed by alteration of olivine
n
(mineralogy) Synonym of idrialite
n
(mineralogy) A trigonal-ditrigonal pyramidal brownish yellow mineral containing calcium, cerium, chlorine, fluorine, hafnium, hydrogen, iron, lanthanum, manganese, neodymium, niobium, oxygen, potassium, silicon, sodium, strontium, titanium, and zirconium.
n
(mineralogy) A micaceous phyllosilicate clay mineral with aggregates of grey or white monoclinic crystals.
n
(mineralogy) A monoclinic-prismatic white-gray mineral containing mercury, silver, and sulfur.
n
An emerald green jadeite mineral gemstone.
n
(mineralogy) A monoclinic-prismatic mineral containing boron, calcium, hydrogen, magnesium, and oxygen.
n
(mineralogy) A monoclinic mineral containing arsenic, calcium, hydrogen, magnesium, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, fluorine, magnesium, oxygen, and phosphorus.
n
(mineralogy) A form of opal that has iron oxide impurities
n
(mineralogy) An orthorhombic-dipyramidal silky white mineral containing germanium, hydrogen, lead, oxygen, and sulfur.
n
Alternative form of jadeite [(mineralogy) A pyroxene mineral, a sodium aluminium silicate with the chemical formula Na(Al,Fe³⁺)Si₂O₆, found in metamorphic rocks.]
n
(mineralogy) A triclinic-pinacoidal light green mineral containing aluminum, barium, hydrogen, oxygen, and phosphorus.
n
(mineralogy) A triclinic-pinacoidal black mineral containing antimony, arsenic, sulfur, and thallium.
n
(mineralogy) A monoclinic-prismatic mineral containing boron, calcium, chlorine, hydrogen, oxygen, and silicon.
n
Obsolete form of jasper. [(obsolete) Any bright-coloured kind of chalcedony apart from cornelian.]
n
A yellow variety of opal resembling jasper.
adj
Containing jasper, composed of jasper
adj
jaspidean; containing jasper
n
Obsolete form of jasper. [(obsolete) Any bright-coloured kind of chalcedony apart from cornelian.]
n
A form of onyx, part or all of whose layers consist of jasper.
n
(obsolete) An azure gem found in the East Indies.
n
(mineralogy) A monoclinic-prismatic mineral containing antimony, arsenic, lead, sulfur, and thallium.
n
(mineralogy) An amorphous mineral containing arsenic, selenium, and sulfur.
n
(mineralogy) An orthorhombic lemon yellow mineral containing carbon, hydrogen, oxygen, and uranium.
n
(mineralogy) A grey monoclinic sulfosalt mineral with chemical formula Pb₁₄(As,Sb)₆S₂₃.
n
(mineralogy) An orthorhombic mineral containing aluminum, calcium, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy) A particular pumpellyite mineral.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, magnesium, oxygen, silicon, sodium, and titanium.
n
(mineralogy) A tetragonal-dipyramidal mineral containing arsenic, hydrogen, iron, oxygen, and uranium.
n
(mineralogy) A trigonal-hexagonal scalenohedral colorless mineral containing oxygen, potassium, strontium, and sulfur.
n
(obsolete, mineralogy) Synonym of syngenite
n
(mineralogy) Any a series of ultrapotassic igneous rocks, between kalsilitite and leucitite
n
(mineralogy) A dimorph of bicchulite; a tetragonal colorless mineral containing aluminum, calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A triclinic yellow mineral containing aluminum, hydrogen, lead, oxygen, phosphorus, and uranium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing magnesium, manganese, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing hydrogen, manganese, oxygen, phosphorus, and sodium.
n
(mineralogy) A mineral with the chemical formula Na(Fe²⁺,Mn²⁺)PO₄.
n
(mineralogy) A monoclinic mineral containing hydrogen, magnesium, nickel, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, lead, oxygen, silicon, and uranium.
n
(mineralogy) A form of meerschaum
n
(mineralogy) A triclinic-pinacoidal white mineral containing hydrogen, oxygen, silicon, sodium, and zirconium.
n
(mineralogy) A hexagonal-pyramidal mineral containing aluminum, hydrogen, magnesium, manganese, oxygen, and silicon.
n
(mineralogy) A trigonal-pyramidal mineral containing antimony, bromine, chlorine, mercury, and oxygen.
n
(mineralogy) A monoclinic white mineral containing hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic azure mineral containing arsenic, cadmium, calcium, copper, hydrogen, manganese, oxygen, and zinc.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, fluorine, hydrogen, oxygen, and sulfur.
n
(mineralogy) A hexagonal-dihexagonal pyramidal light yellow mineral containing barium, calcium, carbon, cerium, oxygen, sodium, and strontium.
n
(mineralogy) A triclinic-pinacoidal white mineral containing aluminum, fluorine, hydrogen, oxygen, and phosphorus.
n
(mineralogy) A particular pavonite mineral.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal bright yellow mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
n
(mineralogy) A form of lazulite
n
(mineralogy) A variety of spotted slate characterized by conspicuous subspherical or polyhedral clots that are often individual minerals.
n
(mineralogy) A hydrous sulphate of chromium, iron and aluminium.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, calcium, cerium, fluorine, hafnium, iron, lanthanum, manganese, niobium, oxygen, silicon, sodium, strontium, titanium, vanadium, yttrium, and zirconium.
n
Alternative form of köttigite [(mineralogy) A rare hydrated zinc arsenate mineral.]
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, nitrogen, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, calcium, hydrogen, iron, and oxygen.
n
(mineralogy) A variety of silver containing about 5% mercury
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, magnesium, oxygen, sodium, and sulfur.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing boron, calcium, hydrogen, and oxygen.
n
(mineralogy) An orthorhombic-dipyramidal pale blue mineral containing aluminum, barium, carbon, hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) A rare organic mineral, an orthorhombic hydrocarbon formed by combustion of coal or pyritic black shale deposits.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, oxygen, potassium, and sulfur.
n
Alternative form of krutaite [(mineralogy) An isometric-diploidal gray mineral containing copper and selenium.]
n
(mineralogy) A radioactive mineral containing barium, cerium, and fluorine.
n
(mineralogy) A monoclinic colorless mineral containing aluminum, hydrogen, magnesium, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing bromine, chlorine, and mercury.
n
(mineralogy) A monoclinic-domatic dark red mineral containing arsenic, mercury, silver, and sulfur.
n
Alternative spelling of lagonite [(mineralogy) An earthy, hydrous iron borate, H¹⁴Fe⁴Bo¹²O³¹ + 2[Fe²]ᵛⁱBo⁶O¹² + 7Aq]
n
A precious stone resembling lapis lazuli, but softer, and intermixed with veins of green rather than pyrite.
n
A rare blue variety of pectolite found only in the Dominican Republic.
n
A variety of monzonite with small crystals of feldspar.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, iodine, and oxygen.
n
Ellipsis of lapis lazuli. [(mineralogy) A deep-blue stone, used in making jewelry, and traditionally used to make the pigment ultramarine.]
n
(mineralogy) A mineral of metamorphosed limestones. Lazurite forms the gemstone lapis lazuli, and crushed lazurite provided the ultramarine color in artists' paint of the Old Masters. Sodalite and lazurite form the sodalite group of silicate minerals. Chemical composition: Sodium aluminum silicate with sulphur, Na₄₋₅Al₃Si₃O₁₂S.
n
(mineralogy) A trigonal-hexagonal scalenohedral mineral containing copper, hydrogen, iron, magnesium, oxygen, tellurium, and zinc.
n
(mineralogy) A dark, vitreous mineraloid produced by surface oxidation of lignite
n
(mineralogy) A variety of clinochlore that contains little or no iron.
n
A gabbro that is light in colour due to a high concentration of plagioclase feldspar.
n
(geology) A coarse-grained quartzofeldspathic vein
n
(mineralogy) A yellowish-green monoclinic mineral which is a hydrated iron uranyl sulfate.
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, copper, hydrogen, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, carbon, hydrogen, manganese, oxygen, and sodium.
n
(mineralogy) An orthorhombic-pyramidal colorless mineral containing aluminum, calcium, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-sphenoidal colorless mineral containing aluminum, hydrogen, oxygen, potassium, and silicon.
n
A mineral resembling a cut gem, formed that way by nature. [from 19th c.]
n
(mineralogy) A monoclinic-sphenoidal lead gray mineral containing arsenic, lead, and sulfur.
n
(mineralogy) Serpentine.
n
(mineralogy) A kind of crystallite with a slender acicular form.
n
(mineralogy) An orthorhombic-pyramidal mineral containing aluminum, barium, beryllium, calcium, hydrogen, iron, magnesium, oxygen, phosphorus, potassium, silicon, sodium, and titanium.
n
(mineralogy) A mineral composed of a hydrated silicate of sodium, potassium, manganese, calcium, and zirconium
n
(mineralogy) A monoclinic-prismatic bronze brown mineral containing platinum and selenium.
n
(mineralogy) A triclinic-pinacoidal yellow mineral containing arsenic, calcium, copper, hydrogen, iron, oxygen, and zinc.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, hydrogen, iron, magnesium, oxygen, phosphorus, and strontium.
n
(mineralogy) A kind of granite characterized by the presence of radiating groups of minute tourmaline crystals.
n
(mineralogy) A tetragonal-scalenohedral pale brownish pink mineral containing arsenic, copper, and sulfur.
n
(mineralogy) A variety of black chert.
n
(mineralogy) A green or brown transparent mineral, formula Fe³⁺Te²O⁵(OH), found in Esmeralda County, Nevada.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy) A form of magnesium carbonate, MgCO₃, occurring as dolomite (with calcite) but rarely found in the pure state.
n
(mineralogy) A tetragonal-trapezohedral mineral containing arsenic, calcium, chlorine, copper, hydrogen, oxygen, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, oxygen, silicon, and tin.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, oxygen, and selenium.
n
(mineralogy) An isometric-hexoctahedral mineral containing arsenic, calcium, magnesium, manganese, oxygen, and sodium.
adj
(mineralogy) Describing minerals containing trivalent or tetravalent manganese
adj
(mineralogy) Describing minerals containing divalent manganese
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, magnesium, manganese, oxygen, silicon, and sodium.
n
(mineralogy) A trigonal-ditrigonal pyramidal mineral containing calcium, chlorine, hydrogen, manganese, oxygen, silicon, sodium, strontium, tungsten, and zirconium.
n
(mineralogy) An orthorhombic-dipyramidal black mineral containing antimony, arsenic, iron, manganese, oxygen, and silicon.
n
(mineralogy) A tetragonal-dipyramidal deep maroon red mineral containing aluminum, calcium, hydrogen, iron, magnesium, manganese, oxygen, and silicon.
n
(mineralogy) The orthorhombic form of iron disulfide, FeS₂, occurring as yellow crystals.
n
(mineralogy, obsolete) A hydrous potash mica related to muscovite.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, lead, manganese, oxygen, and silicon.
n
(mineralogy) A tetragonal-dipyramidal mineral containing aluminum, chlorine, oxygen, silicon, and sodium.
n
(mineralogy) A triclinic mineral containing calcium, hydrogen, manganese, oxygen, silicon, and sodium.
n
(mineralogy) A glassy phase found in some meteorites and impact craters, typically similar in composition to plagioclase feldspar.
n
(mineralogy) A trigonal-rhombohedral black mineral containing calcium, chromium, iron, magnesium, oxygen, potassium, strontium, and titanium.
n
(mineralogy) A monoclinic-prismatic mineral containing a hydrated aluminum and calcium phosphate
n
(mineralogy) Synonym of blue beryl
n
A deep blue variety of beryl.
n
(mineralogy) A monoclinic-prismatic mineral containing carbon, copper, hydrogen, magnesium, and oxygen.
n
(mineralogy) A monoclinic-prismatic brownish red mineral containing arsenic, calcium, hydrogen, manganese, oxygen, silicon, and vanadium.
n
(mineralogy) A trigonal-hexagonal scalenohedral colorless mineral containing aluminum, hydrogen, magnesium, and oxygen.
n
(mineralogy) An earthy black oxide of copper, arising from the decomposition of other ores.
n
(mineralogy) A tetragonal-disphenoidal mineral containing aluminum, beryllium, calcium, fluorine, hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A nickel telluride mineral.
n
(mineralogy) A reddish-brown isometric mineral containing barium, hydrogen, magnesium, niobium, oxygen and zirconium
n
(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, oxygen, potassium, and sulfur.
adj
(mineralogy) Describing minerals containing divalent mercury
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, magnesium, oxygen, and silicon.
n
(mineralogy) A triclinic-pinacoidal orange mineral containing hydrogen, iron, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic yellow orange mineral containing aluminum, hydrogen, oxygen, phosphorus, and vanadium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, oxygen, and uranium.
n
(mineralogy) An orthorhombic-dipyramidal light yellow mineral containing hydrogen, oxygen, and uranium.
n
(mineralogy) An orthorhombic-pyramidal canary yellow mineral containing hydrogen, oxygen, phosphorus, and uranium.
n
(mineralogy) A tetragonal-dipyramidal mineral containing arsenic, copper, hydrogen, oxygen, and uranium.
n
(mineralogy) An orthorhombic-pyramidal gray mineral containing bismuth, copper, iron, lead, and sulfur.
n
(mineralogy, archaic) A mineral resembling pyromorphite but with some of the phosphoric acid replaced by arsenic acid.
n
(mineralogy) A monoclinic-prismatic blue mineral containing hydrogen, oxygen, sulfur, and vanadium.
n
(mineralogy) A monoclinic-prismatic mineral containing carbon, hydrogen, iron, oxygen, and potassium.
n
(mineralogy) An evaporite, consisting of sodium sulfate, with the chemical formula Na₂SO₄·10H₂O.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, fluorine, hydrogen, oxygen, phosphorus, and sulfur.
n
(mineralogy) A crystalline form of silica that has a different crystal structure than that of quartz
n
(geology) A substance formed by meteorite impact, a component of the tektites found across central Europe.
n
(mineralogy) A triclinic-pinacoidal mineral containing antimony, gold, and tellurium.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, fluorine, hydrogen, lithium, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-pyramidal colorless mineral containing aluminum, hydrogen, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing iodine and mercury.
n
(mineralogy) A mineral composed of a lead and copper vanadate.
n
(mineralogy) A light powdery variety of calcite, occurring as an efflorescence.
n
(mineralogy) A monoclinic-prismatic black mineral containing aluminum, calcium, hydrogen, oxygen, silicon, and vanadium.
n
(mineralogy) A monoclinic-prismatic pearl white mineral containing hydrogen, oxygen, sodium, and vanadium.
n
(mineralogy) An isometric-hextetrahedral black mineral that is a basic oxide and fluoride of yttrium, sodium, zinc, iron, titanium and niobium
n
(mineralogy) A triclinic-pedial mineral containing hydrogen, niobium, oxygen, silicon, sodium, and titanium.
n
(mineralogy) A trigonal mineral containing hydrogen, iron, magnesium, and oxygen.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, calcium, hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, fluorine, oxygen, phosphorus, and sodium.
n
(mineralogy) A hexagonal mineral containing calcium, oxygen, phosphorus, and silicon.
n
(mineralogy) A monoclinic white mineral containing hydrogen, oxygen, phosphorus, and sodium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, cesium, fluorine, hydrogen, iron, lithium, magnesium, oxygen, and silicon.
n
(mineralogy) An orthorhombic-pyramidal white mineral containing boron, hydrogen, oxygen, and sodium.
n
(mineralogy) A hexagonal-dipyramidal white mineral containing calcium, chlorine, lead, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic mineral containing chromium, oxygen, silicon, sodium, and vanadium.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, fluorine, hydrogen, lithium, oxygen, phosphorus, and sodium.
n
(mineralogy) A triclinic-pinacoidal pink orange mineral containing hydrogen, lithium, manganese, oxygen, silicon, and sodium.
n
(mineralogy) A trigonal-hexagonal scalenohedral colorless mineral containing oxygen, sodium, and tantalum.
n
(mineralogy) A triclinic-pedial pearl white mineral containing calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) An orthorhombic-disphenoidal mineral containing aluminum, copper, fluorine, hydrogen, oxygen, phosphorus, vanadium, and zinc.
n
A coloured quartz mineral gemstone, serpentine; it is not a normal jade mineral, being neither nephrite nor jadeite.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic mineral containing chlorine, hydrogen, nickel, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, bismuth, calcium, cobalt, hydrogen, iron, nickel, and oxygen.
n
(mineralogy) A monoclinic mineral containing boron, calcium, hydrogen, and oxygen.
n
(mineralogy) A trigonal-rhombohedral green mineral containing aluminum, hydrogen, iron, oxygen, sodium, and sulfur.
n
(mineralogy) An orthorhombic-disphenoidal mineral containing calcium, cerium, hydrogen, oxygen, phosphorus, and uranium.
n
(mineralogy) A monoclinic-prismatic bluish green mineral containing copper, hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) A colourless orthorhombic mineral containing hydrogen, manganese, oxygen, phosphorus, and zinc.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing fluorine, hydrogen, magnesium, oxygen, and silicon.
n
(mineralogy, obsolete) A supposed mineral, now believed to be phillipsite.
n
(mineralogy) A monoclinic-prismatic mineral containing lithium, manganese, oxygen, potassium, and silicon.
n
(mineralogy) A trigonal-trapezohedral mineral containing barium, carbon, magnesium, and oxygen.
n
(geology, mineralogy) A variety of chert, very rich in quartz, that has been used to make whetstones
n
(mineralogy) A type of naturally occurring black glass produced by volcanoes.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing beryllium, calcium, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) A trigonal-ditrigonal pyramidal light pink mineral containing aluminum, boron, hydrogen, oxygen, silicon, and sodium.
n
(mineralogy) An orthorhombic-disphenoidal colorless mineral containing lithium, oxygen, phosphorus, and sodium.
n
(mineralogy) A trigonal-pyramidal yellowish brown mineral containing calcium, chlorine, hydrogen, iron, manganese, niobium, oxygen, silicon, sodium, and zirconium.
n
(gemology) A precious gem, an iridescent gemstone found in the opal-silica mineral substrate (potch)
n
(jewelry) A pineapple-shaped-cut opal gem as a part of jewelry
adj
Similar to opal; having some of the qualities of opal.
adj
Having a structure similar to that of opal
adj
Converted into a form of opal or chalcedony
n
(mineralogy) A charnockitic form of granodiorite
n
Any of a group of mixed oxides of chromium and another metal (typically a rare earth element) of general formula MCrO₃
n
(geology) a porphyritic rock that contains phenocrysts of orthoclase embedded in feldspar
n
(mineralogy) A form of the mineral chloritoid.
n
(mineralogy) An orthorhombic white mineral containing boron, calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A tetragonal-dipyramidal dark blue mineral containing calcium, carbon, copper, hydrogen, and oxygen.
n
(dated, mineralogy) agalmatolite
n
(mineralogy) An isometric-tetartoidal mineral containing beryllium, calcium, hydrogen, lithium, oxygen, phosphorus, potassium, and sodium.
n
(mineralogy) A material similar to basalt formed by the action of water on volcanic ash
n
(mineralogy) A hexagonal-trapezohedral steel gray mineral containing arsenic, palladium, and tin.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, palladium, and rhodium.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, fluorine, hydrogen, magnesium, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic brownish yellow mineral containing calcium, iron, magnesium, manganese, oxygen, phosphorus, potassium, and sodium.
n
(mineralogy) An orthorhombic-dipyramidal white mineral containing palladium and tin.
n
(mineralogy) A natural polymorph of celsian.
n
A bright, gemstone with blue to green tones.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, hydrogen, iron, oxygen, and phosphorus.
n
(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, lead, oxygen, phosphorus, and uranium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, oxygen, and silicon.
n
(mineralogy) A monoclinic-prismatic straw yellow mineral containing hydrogen, magnesium, manganese, oxygen, and silicon.
n
(mineralogy) A rare zeolite mineral found in vesicles in alluvial basaltic rocks.
n
(mineralogy) A basic calcium borate found in skarn minerals
n
(mineralogy) A pentahydrated form of calcite
n
(mineralogy) A monoclinic-prismatic mineral containing antimony, calcium, hydrogen, oxygen, and sulfur.
n
(geology) A rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.
n
(mineralogy) A variety of albite, whitish and slightly iridescent.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal pearl white mineral containing aluminum, hydrogen, oxygen, potassium, silicon, and thallium.
n
(mineralogy) An amorphous volcanic glass formed by the hydration of obsidian.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, chlorine, hydrogen, oxygen, silicon, sodium, and zirconium.
n
(mineralogy) A trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium.
n
(obsolete, mineralogy) The lead-coloured agate.
n
(mineralogy) A clear glassy mineral, a silicate of glucina, occurring in rhombohedral crystals and sometimes used as a gem.
n
(mineralogy) A monoclinic-sphenoidal mineral containing aluminum, hydrogen, magnesium, oxygen, and sulfur.
n
(mineralogy) A fibrous variety of serpentine.
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, calcium, hydrogen, magnesium, and oxygen.
n
(mineralogy, outdated) A hexagonal mineral containing hydrogen, nickel, oxygen, and silicon.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing chlorine, lead, oxygen, and tungsten.
n
(gemology, mining) A large raw opal spheroidal gemstone with pineapple-like projection points
n
(mineralogy, informal) plagioclase feldspar
n
Synonym of plasma gemstone (a dark green variety of chalcedony)
n
(mineralogy) A variety of calcite that contains some lead carbonate.
n
(mineralogy) A monoclinic-prismatic mineral containing carbon, hydrogen, magnesium, and oxygen.
n
(mineralogy) A pale brown andradite garnet
n
(obsolete, mineralogy) muscovite
n
(mineralogy) A black mineral that is a sulfide of antimony and silver
n
(mineralogy) A black or brown amorphous metallic complex uranium yttrium oxide mineral, found in granitic pegmatites.
n
(mineralogy) An amorphous aluminosilicate of iron (with some manganese)
n
(mineralogy) Synonym of freibergite
n
Obsolete form of porphyry. [(geology) a hard igneous rock consisting of large crystals in a fine-grained matrix]
n
(mineralogy) A rare oxide mineral, the naturally-occurring form of calcium hydroxide.
n
(mineralogy) A monoclinic-prismatic black mineral containing calcium, fluorine, hydrogen, iron, magnesium, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A monoclinic mineral containing aluminum, calcium, hydrogen, iron, oxygen, potassium, silicon, and sodium.
n
(chiefly Australia, mineralogy, gemmology) A type of rough opal without colour, and therefore not worth selling.
n
(mineralogy) A triclinic-pinacoidal white mineral containing antimony, iron, lead, sulfur, and tin.
n
(mineralogy) A trigonal-hexagonal scalenohedral silver white mineral containing bismuth, lead, selenium, sulfur, and tellurium.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal mineral containing boron, oxygen, potassium, silicon, and sodium.
n
(mineralogy) A variety of cryptocrystalline of a green colour.
n
(mineralogy) Pseudomalachite.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, hydrogen, magnesium, oxygen, silicon, and sodium.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal indigo blue mineral containing chlorine, copper, hydrogen, lead, and oxygen.
n
(geology) A pseudomorph of leucite that is a mixture of nepheline and orthoclase
n
(mineralogy) A mineral containing copper, hydrogen, oxygen, and phosphorus.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing aluminum, boron, hydrogen, magnesium, and oxygen.
n
(geology) One of a group of sorosilicate minerals.
n
(mineralogy) An isometric-hextetrahedral iron black mineral containing copper, germanium, silver, and sulfur.
n
(mineralogy) A mineral whose composition is that of a mixed niobate mostly of sodium, calcium and cerium, (Na,Ca)₂Nb₂O₆(OH,F).
n
(mineralogy) A trigonal-rhombohedral mineral containing manganese, oxygen, and titanium.
n
(mineralogy) Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium.
n
(mineralogy) A soft colourless monoclinic mineral with the chemical formula NaHCO₃·H₃BO₃·2H₂O.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing arsenic, cadmium, lead, silver, and sulfur.
adj
Alternative form of quartz arenitic [Of or relating to quartz arenite.]
n
Alternative form of quartz arenite [A sandstone arenite that is predominantly composed of silica.]
n
(mineralogy) A metamorphic rock from sandstone, consisting of interlocking grains of quartz.
n
(geology) A type of rock consisting of almost pure quartz, but also containing some feldspar and small amounts of mica and amphibole.
n
(mineralogy) rose-coloured opal
n
(mineralogy) A triclinic yellowish-white mineral containing calcium, carbon, sodium, fluorine, phosphorus, lithium, hydrogen, oxygen, yttrium, and zirconium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, hydrogen, iron, oxygen, tungsten, and vanadium.
n
(mineralogy) A monoclinic mineral containing aluminum, hydrogen, oxygen, phosphorus, and uranium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, carbon, hydrogen, oxygen, and sulfur.
n
(mineralogy) An amorphous mineral containing calcium, hydrogen, oxygen, uranium, and vanadium.
n
(mineralogy) A monoclinic-sphenoidal mineral containing carbon and hydrogen.
n
(mineralogy) A monoclinic mineral containing aluminum, chromium, hydrogen, iron, magnesium, nickel, oxygen, and sulfur.
n
(mineralogy) An orthorhombic-disphenoidal white mineral containing carbon, hydrogen, and oxygen.
n
(mineralogy) A dark green mineral containing copper, hydrogen, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, oxygen, and zinc.
n
(mineralogy) A monoclinic-prismatic dark greenish brown mineral containing calcium, lanthanum, cerium, praseodymium, neodymium, samarium, oxygen, silicon, strontium, titanium, and zirconium.
n
(mineralogy) A tetragonal-scalenohedral orange brown mineral containing arsenic, copper, germanium, iron, sulfur, and zinc.
n
(mineralogy) Any of a range of phosphate minerals containing varying amounts of several lanthanides
n
(mineralogy) An orthorhombic-dipyramidal silky white mineral containing calcium, hydrogen, oxygen, potassium, silicon, and sodium.
adj
(mineralogy) Describing minerals containing rhodium
n
(mineralogy) A rare rhodium-lead sulphide mineral with chemical formula Rh₃Pb₂S₂.
n
(mineralogy) A glassy feldspar found at Mount Somma in Italy.
n
(geology) An extrusive volcanic rock intermediate in composition between dacite and rhyolite
n
(geology) An igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture.
n
(mineralogy) A tetragonal-pyramidal mineral containing calcium, hydrogen, iron, oxygen, and phosphorus.
n
(mineralogy) A white or pale green orthorhombic mineral containing chlorine, magnesium, hydrogen, oxygen and lead.
n
(mineralogy) A stratified ornamental stone, a form of serpentine.
n
(mineralogy) A form of amphibole rich in sodium
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, manganese, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-dipyramidal steel gray mineral containing antimony, copper, sulfur, and thallium.
n
Alternative spelling of romanechite [(mineralogy) a mixed oxide mineral of manganese and barium which is an ore of manganese]
n
(mineralogy) A tetragonal-ditetragonal dipyramidal black mineral containing oxygen and tin.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, bismuth, and oxygen.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal colorless mineral containing calcium, chlorine, fluorine, and magnesium.
n
(mineralogy) Synonym of rosolite.
n
A pinkish to reddish-colored type of quartz.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, iron, magnesium, manganese, oxygen, phosphorus, and sodium.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, carbon, hydrogen, oxygen, and silicon.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing antimony, arsenic, copper, lead, silver, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing sulfur.
n
(mineralogy) A triclinic-pinacoidal yellow mineral containing calcium, hydrogen, oxygen, and vanadium.
n
(mineralogy) An iron sulphide mineral with chemical formula FeSO₄·4H₂O.
n
(mineralogy) A monoclinic-prismatic grayish white mineral containing arsenic, ruthenium, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, niobium, oxygen, and tantalum.
n
(mineralogy) A yellow-brown triclinic mineral containing iron, hydrogen, oxygen, and sulphur.
n
(mineralogy) An isometric-gyroidal mineral containing boron, calcium, carbon, hydrogen, magnesium, and oxygen.
n
(mineralogy) A massive lamellar variety of pyroxene, of a dingy green colour.
adj
(mineralogy) Describing minerals containing samarium
n
(mineralogy) A shiny black radioactive mineral that contains a complex mixture of rare earth oxides
n
(mineralogy) A triclinic white mineral containing aluminum, hydrogen, oxygen, phosphorus, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing iron, oxygen, tungsten, and zinc.
n
(mineralogy) A triclinic-pinacoidal mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
n
Obsolete form of sapphire. [(countable) A clear deep blue variety of corundum, valued as a precious stone.]
n
Obsolete form of sapphire. [(countable) A clear deep blue variety of corundum, valued as a precious stone.]
n
(mineralogy) An orthorhombic chalky white mineral containing aluminum, boron, chlorine, hydrogen, oxygen, potassium, and sodium.
adj
(mineralogy) Describing minerals containing scandium
n
(mineralogy) A hexagonal-ditrigonal dipyramidal silky white mineral containing calcium, germanium, hydrogen, oxygen, and sulfur.
n
(mineralogy) The part of anthracoxene that is soluble in ether.
n
(mineralogy) An isometric-diploidal reddish brown mineral containing hydrogen, magnesium, oxygen, and tin.
n
(mineralogy) An evaporite, consisting of a mixed potassium and magnesium sulphate, of the chemical formula K₂Mg(SO₄)₂·6(H₂O).
n
(mineralogy) A tetragonal iron nickel phosphide mineral most commonly found in meteorites.
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, bismuth, hydrogen, oxygen, phosphorus, and vanadium.
n
(chemistry) Any of a family of analogs of graphene, having negative Gaussian curvature, that form three-dimensional lattices
n
(geology) A glistening speleothem consisting of quartz crystals.
n
(mineralogy) A monoclinic-prismatic mineral containing lead, oxygen, and sulfur.
n
(organic chemistry) A substance resembling inosite and metameric with dextrose, extracted from the kidney of the dogfish, the shark, and the skate.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, iron, magnesium, manganese, oxygen, silicon, sodium, titanium, and zirconium.
adj
(mineralogy) Describing minerals containing selenate anions
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing fluorine and magnesium.
n
(mineralogy) A hydrated magnesium silicate, clay mineral used for carving into decorative articles and smoking pipes.
n
(mineralogy) A fine-grained mica found in metamorphic rocks
n
(mineralogy) An isometric-hexoctahedral bronze mineral containing cadmium, copper, iron, lead, and sulfur.
n
(mineralogy) A particular batisite mineral.
n
(mineralogy) Synonym of phyllosilicate
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing aluminum, calcium, hydrogen, oxygen, and vanadium.
n
(mineralogy) A rare iron-nitrogen mineral, Fe₅N₂, associated with lava.
n
An indigo-blue variety of quartz.
n
(geology) A basaltic glass often found in palagonite tuff.
n
(mineralogy) An iron sulphide mineral with chemical formula FeSO₄·5H₂O.
n
(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, lead, oxygen, and sulfur.
n
(mineralogy) A monoclinic-prismatic mineral containing hydrogen, lithium, oxygen, silicon, and sodium.
n
(mineralogy) A cubic mineral with the chemical formula Bi₁₂SiO₂₀, typically found in association with bismuthite.
n
(mineralogy) A tetragonal-dipyramidal mineral containing aluminum, calcium, carbon, oxygen, silicon, sodium, and sulfur.
n
(mineralogy) A monoclinic-prismatic pale buff cream mineral containing aluminum, fluorine, lithium, and sodium.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing aluminum, boron, magnesium, and oxygen.
n
(mineralogy) A triclinic-pinacoidal mineral containing aluminum, hydrogen, manganese, oxygen, and phosphorus.
n
(mineralogy) A niobate of erbium.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing hydrogen, niobium, oxygen, potassium, silicon, sodium, and titanium.
n
(mineralogy) Alternative form of scolecite [(mineralogy) A monoclinic-domatic mineral containing aluminum, calcium, hydrogen, oxygen, and silicon.]
n
Alternative form of scorodite [(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, hydrogen, iron, and oxygen.]
n
(mineralogy) A variety of skutterudite with the chemical formula (Co,Fe,Ni)As₂, crystallizing in the cubic system.
n
Alternative spelling of smoky quartz [A brown to black variety of quartz.]
n
(mineralogy) A mineral of alkaline igneous and plutonic rocks that are low in silica, of the chemical composition of sodium aluminum silicate with chlorine, Na₄Al₃Si₃O₁₂Cl. Pink sodalite is sometimes called hackmanite. Sodalite and lazurite form the sodalite Group of silicate minerals.
n
A nephrite mineral gemstone.
n
A mineral of the osumilite group: (K,Na)₂Li₂(Li,Fe,Al)₂ZrSi₁₂O₃₀
n
(mineralogy) A monoclinic-prismatic colorless mineral containing boron, calcium, chlorine, hydrogen, and oxygen.
n
(mineralogy) An orthorhombic brownish gray mineral containing palladium, silver, and tellurium.
n
(mineralogy) An orthorhombic-dipyramidal colorless mineral containing aluminum, antimony, calcium, niobium, oxygen, potassium, sodium, and tantalum.
n
(mineralogy) An isometric-diploidal tin white mineral containing arsenic and platinum.
n
(proscribed) Alternative form of spessartine [(mineralogy) A type of garnet, a neosilicate of manganese and aluminium with the chemical formula Mn₃²⁺Al₂(SiO₄)₃.]
n
Alternative form of spherocobaltite [(mineralogy) Cobalt(II) carbonate, a red trigonal mineral used in pottery glazes.]
n
(mineralogy) Siderite occurring in spheroidal masses.
n
(mineralogy) A greenish schistose rock spotted with chlorite.
n
(mineralogy) The mineral lithium aluminium inosilicate (LiAl(SiO₃)₂), a pyroxene and ore of lithium, sometimes regarded as a gemstone, which may be greenish, yellowish or pinkish in appearance.
n
(slang) Synonym of Asquithite
n
a dark-gray lustrous mineral, a mixed sulfide of copper, iron, and tin, Cu₂FeSnS₄, used as an ore of tin
n
(archaic, mineralogy) staurolite
n
(mineralogy) A monoclinic mineral containing aluminum, hydrogen, oxygen, and vanadium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, barium, carbon, fluorine, oxygen, sodium, and strontium.
n
(mineralogy) A monoclinic mineral containing arsenic, hydrogen, manganese, and oxygen.
n
(mineralogy) An orthorhombic-dipyramidal black mineral containing antimony, arsenic, lead, silver, and sulfur.
n
(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, iron, manganese, oxygen, and phosphorus.
n
(mineralogy) An isometric-hexoctahedral mineral containing antimony, hydrogen, and oxygen.
n
(mineralogy) An orthorhombic-pyramidal mineral containing antimony, oxygen, and tantalum.
n
(mineralogy) A mineral with rhombohedral crystals, often pink or lilac, Mg₆Cr₂CO₃(OH)₁₆·4H₂O.
n
(mineralogy) A hexagonal-dihexagonal dipyramidal light blue mineral containing aluminum, beryllium, hydrogen, iron, magnesium, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-sphenoidal colorless mineral containing boron, hydrogen, oxygen, and strontium.
n
(mineralogy) A monoclinic-prismatic mineral containing boron, magnesium, and oxygen.
n
(mineralogy) The most common type of sandstone, intermediate in composition between orthoquartzite and graywacke, typically composed of 30% to 65% quartz and chert, less than 15% clay matrix, more than 25% unstable materials such as feldspar grains and rock fragments, and voids or mineral cement exceeding the amount of clay matrix, and being lighter colored and better sorted, and with less matrix, than graywacke.
n
Alternative form of subgraywacke [(mineralogy) The most common type of sandstone, intermediate in composition between orthoquartzite and graywacke, typically composed of 30% to 65% quartz and chert, less than 15% clay matrix, more than 25% unstable materials such as feldspar grains and rock fragments, and voids or mineral cement exceeding the amount of clay matrix, and being lighter colored and better sorted, and with less matrix, than graywacke.]
n
(mineralogy) A monoclinic-prismatic white mineral containing aluminum, hydrogen, iron, magnesium, oxygen, and silicon.
n
(mineralogy) A mineral with hexagonal crystals, often pink or purple but can have different colors, KNa₂(Fe²⁺,Mn²⁺,Al)₂Li₃Si₁₂O₃₀.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, beryllium, iron, magnesium, oxygen, and silicon.
n
(mineralogy) A monoclinic mineral containing aluminum, carbon, copper, fluorine, hydrogen, iron, lead, oxygen, silicon, and sodium.
n
(mineralogy) A monoclinic-prismatic light yellow mineral containing hydrogen, oxygen, silicon, and uranium.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, carbon, hydrogen, magnesium, oxygen, and uranium.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, hydrogen, lithium, magnesium, oxygen, silicon, and sodium.
n
(mineralogy, uncommon) Synonym of sylvite
n
(mineralogy) A triclinic-pinacoidal venetian pink mineral containing chlorine, hydrogen, lead, oxygen, and sulfur.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, calcium, hydrogen, lead, magnesium, manganese, and oxygen.
n
(mineralogy) A soft monoclinic mineral with the chemical formula MnSO₄·(H₂O).
n
(mineralogy) An iron sulfate mineral with chemical formula FeSO₄·H₂O.
n
(mineralogy) A mineral form of gallium hydroxide, Ga(OH)₃
n
(mineralogy) A hexagonal mineral containing calcium, hydrogen, manganese, and oxygen.
n
(mineralogy) A triclinic-pinacoidal mineral containing arsenic, calcium, hydrogen, magnesium, and oxygen.
n
(mineralogy) A light blue monoclinic calcium copper basic arsenate sulfate mineral.
n
(mineralogy) A triclinic-pedial colorless mineral containing oxygen and tantalum.
n
(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, iron, oxygen, silicon, and sodium.
n
(mineralogy) A trigonal-hexagonal scalenohedral silver white mineral containing antimony and tellurium.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal bronze mineral containing bismuth, nickel, sulfur, and tellurium.
n
(mineralogy) An orthorhombic gray mineral containing mercury, palladium, and tellurium.
n
(mineralogy) A monoclinic white mineral containing calcium, hydrogen, magnesium, niobium, and oxygen.
n
(mineralogy) A monoclinic snow white mineral containing boron, calcium, hydrogen, and oxygen.
n
(mineralogy) A monoclinic-prismatic colorless mineral containing arsenic, boron, calcium, hydrogen, magnesium, and oxygen.
n
(mineralogy) An isometric-tetartoidal mineral containing antimony, palladium, and tellurium.
n
(mineralogy) A tetragonal-dipyramidal mineral containing arsenic, bismuth, and oxygen.
n
(mineralogy) An orthorhombic-dipyramidal mineral containing oxygen, sodium, and sulfur.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal light yellow mineral containing antimony, arsenic, chlorine, hydrogen, lead, and oxygen.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, hydrogen, oxygen, thorium, titanium, and uranium.
n
(mineralogy) A monoclinic mineral containing aluminum, fluorine, hydrogen, oxygen, and strontium.
n
(mineralogy) A monoclinic-prismatic mineral containing arsenic, calcium, fluorine, magnesium, and oxygen.
n
(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, iron, oxygen, phosphorus, and vanadium.
n
(mineralogy) An orthorhombic-dipyramidal lead gray mineral containing antimony, bismuth, copper, lead, silver, and sulfur.
n
(mineralogy) A monoclinic-prismatic black mineral containing hydrogen, oxygen, titanium, and vanadium.
n
(mineralogy) A manganese oxide mineral, also containing calcium, barium, potassium, sodium, and sometimes magnesium that is a major constituent of manganese nodules
n
(geology, dated) Quartz diorite.
n
An often clear, yellowish-brown gemstone cut from this.
n
(mineralogy) A yellowish form of andradite
n
(mineralogy) A monoclinic colorless mineral containing calcium, hydrogen, oxygen, and silicon.
n
A type of acid volcanic rock containing around one tenth alkali and over one fifth quartz.
n
(mineralogy) A monoclinic-prismatic black mineral containing bismuth, lead, silver, and sulfur.
n
(mineralogy) A rare mineral of volcanic rocks that solidified at a high temperature, with the chemical composition silicon dioxide, SiO₂. Tridymite is chemically identical to quartz, but has a different crystal structure. Sometimes contains sodium aluminum silicate, which seems to be expelled when quartz solidifies at lower temperatures.
n
(geology) A rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase
n
(mineralogy) A trigonal white mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
n
(mineralogy) A tetragonal-ditetragonal dipyramidal mineral containing aluminum, calcium, hydrogen, oxygen, silicon, and sodium.
n
tsepinite-K [K2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O]
n
(mineralogy) A triclinic mineral containing sodium, rare earths, titanium, silicate, carbonate and oxygen.
n
(mineralogy) A red-brown monoclinic mineral comprising mostly iron, silicon, and oxygen.
n
Alternative form of tourmaline [(mineralogy) A complex black or dark-coloured borosilicate mineral, compounded with various chemical elements and considered a semi-precious stone.]
n
(mineralogy) A trigonal-hexagonal scalenohedral mineral containing arsenic, hydrogen, magnesium, manganese, oxygen, silicon, and vanadium.
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(mineralogy) A grey mineral containing mercury, antimony, arsenic, and sulfur.
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(mineralogy) An isometric-diploidal mineral containing carbon, magnesium, oxygen, sodium, and sulfur.
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(mineralogy) A white mineral with triclinic crystals, NaCaB₅O₉·8H₂O.
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(mineralogy) An amorphous mineral containing hydrogen, oxygen, silicon, sodium, strontium, and thorium.
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(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, molybdenum, oxygen, and uranium.
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(mineralogy) A triclinic-pinacoidal mineral containing hydrogen, iron, magnesium, oxygen, and phosphorus.
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(mineralogy) A triclinic mineral containing copper, hydrogen, oxygen, tellurium, and zinc.
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(mineralogy) An orthorhombic antimony oxide mineral.
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(mineralogy) A monoclinic-prismatic deep red mineral containing calcium, oxygen, silicon, and vanadium.
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(geology) A spherule of a variolite.
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A relatively rare hydrated aluminum phosphate mineral (AlPO₄·2H₂O), sometimes confused with turquoise.
n
(mineralogy) A monoclinic-prismatic mineral containing calcium, iron, manganese, oxygen, phosphorus, and sodium.
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(mineralogy) A triclinic-pedial black mineral containing antimony, mercury, sulfur, and thallium.
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(mineralogy) A complex mineral, a combined chromate and phosphate of copper and lead.
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(mineralogy) A hydrated silicate mineral which expands on heating; it is used in insulation and as a medium for planting.
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(mineralogy) An orthorhombic-dipyramidal mineral containing calcium, cerium, niobium, oxygen, tantalum, and titanium.
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(mineralogy) A rare toxic halide mineral composed of sodium fluoride.
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(mineralogy) A monoclinic-prismatic colorless mineral containing boron, calcium, hydrogen, and oxygen.
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(mineralogy) A monoclinic gray mineral containing antimony, arsenic, palladium, platinum, and tellurium.
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(mineralogy) A red-violet supergene sulfide mineral associated with the weathering and oxidation of primary pentlandite nickel sulfide ore minerals.
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(mineralogy) A monoclinic-prismatic colorless mineral containing carbon, hydrogen, oxygen, phosphorus, sodium, and zirconium.
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(mineralogy) A monoclinic-sphenoidal mineral containing calcium, carbon, copper, hydrogen, oxygen, and uranium.
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(mineralogy) A triclinic-pinacoidal mineral containing fluorine, niobium, oxygen, phosphorus, silicon, sodium, and titanium.
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(mineralogy) An orthorhombic-dipyramidal red mineral containing aluminum, calcium, hydrogen, iron, oxygen, and sulfur.
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(mineralogy) An orthorhombic form of olivine produced under very high pressure
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(mineralogy) An isometric-hexoctahedral steel gray mineral containing cobalt and iron.
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(mineralogy) An orthorhombic mineral containing antimony, arsenic, copper, and sulfur.
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(mineralogy) A tetragonal mineral form of calcium oxalate.
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(mineralogy) An orthorhombic-dipyramidal yellow mineral containing barium, calcium, hydrogen, oxygen, potassium, silicon, and uranium.
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(mineralogy) A hexagonal-ditrigonal dipyramidal light gray mineral containing aluminum, barium, calcium, chlorine, fluorine, hydrogen, oxygen, silicon, sodium, and sulfur.
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(mineralogy) The common greyish or white variety of scapolite.
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(mineralogy) A monoclinic-prismatic mineral containing copper, hydrogen, lead, oxygen, silicon, and sulfur.
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(mineralogy) A rare monoclinic hydrated phosphate mineral.
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(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, hydrogen, iron, magnesium, manganese, oxygen, potassium, silicon, and sodium.
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(mineralogy) A monoclinic-prismatic mineral containing hydrogen, iron, manganese, oxygen, and phosphorus.
n
(mineralogy) An orthorhombic-pyramidal greenish blue mineral containing calcium, copper, hydrogen, oxygen, phosphorus, and sodium.
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(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, iron, magnesium, manganese, oxygen, phosphorus, and sodium.
n
(mineralogy) A yellow mineral composed of aluminium, hydrogen, iron, oxygen, phosphorus, sulphur, and uranium.
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(mineralogy) A monoclinic-prismatic pistachio green mineral containing calcium, copper, hydrogen, iron, magnesium, oxygen, potassium, and silicon.
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(mineralogy) A hexagonal-dihexagonal dipyramidal black mineral containing aluminum, barium, chromium, iron, magnesium, oxygen, potassium, silicon, and titanium.
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(mineralogy) A trigonal-rhombohedral mineral containing aluminum, calcium, oxygen, and silicon.
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(mineralogy) A trigonal-hexagonal scalenohedral mineral containing aluminum, bismuth, hydrogen, iron, oxygen, and phosphorus.
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(mineralogy) A mineral containing lead and manganese.
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(mineralogy, obsolete) wavellite
n
(mineralogy, obsolete) A form of green tourmaline.
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(mineralogy) A golden-yellow mineral containing predominantly copper and zinc but also iron, chromium, and aluminium.
n
A mineral of organic origin with chemical formula NaMg(FeAl)C₂O₄.8H₂O, forming smoky green crystals with a vitreous lustre.
adj
(mineralogy) Describing minerals containing zinc
n
(mineralogy) A mineral species of the olivenite group, CuZn(AsO₄)(OH)
n
(mineralogy) A monoclinic-prismatic gray mineral containing oxygen, tellurium, and zinc.
n
(uncountable) A mineral occurring in tetragonal crystals, usually of a brown or grey colour and consisting of silica and zirconia.
adj
(mineralogy) Describing minerals containing zirconium
n
(mineralogy) A brittle cream-coloured complex mineral.
n
(mineralogy) A variety of albite.
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(mineralogy) A mineral of the mixite group.
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(mineralogy) A brownish triclinic mineral containing aluminium, calcium, niobium, oxygen, silicon, and tantalum.
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