Concept cluster: Tools > Rock and mineral types
n
(historical) A gem engraved with the word Abrasax or Abraxas.
n
(geology) alum slate
adj
sandy
adj
clayey; argillaceous
n
(soil science) A kind of grey loamy sand.
n
(geology) deposits of mixed oxides and hydroxides of iron formed when iron-bearing groundwater emerges onto the surface
n
(mining, archaic, UK, dialect, Cornwall) wolfram, an ore of tungsten.
n
Synonym of rock glacier
n
Synonym of dimension stone
n
(strictly) Electrophorus electricus, a species of fish resembling an eel (though not related) that is capable of generating powerful electric shocks.
n
A fusible eutectic alloy of bismuth, indium, and tin.
adj
Synonym of Flintstonian
n
A piece of laboratory apparatus consisting of a flat piece of wire gauze placed on a tripod to give a beaker or flask additional support or to distribute heat more evenly
adj
Synonym of rubegoldbergian
n
(geology) decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein
n
Alternative form of gossan [(geology) decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein]
n
(geology) Greywacke.
n
(uncountable) A type of gray volcanic rock, typically containing feldspar and iron
n
hornfels
n
A transparent form of calcite, used to demonstrate the polarisation of light.
n
Synonym of labradorite
adj
Synonym of lapidary
n
Synonym of lapillus (“lava fragment”)
n
Synonym of lithographic limestone
n
Synonym of lithographic limestone
adj
Stone-like in texture, appearance or other characteristic.
n
(geology) A type of soil; an earthy mixture of sand, silt and clay, with organic matter to which its fertility is chiefly due.
n
Synonym of dolomite
n
shape memory alloy
adj
Yielding metal.
n
(uncountable, RuneScape, Minecraft) Clipping of obsidian. [(mineralogy) A type of naturally occurring black glass produced by volcanoes.]
n
A hardpan, typically in a podzol
adj
(textiles, Eastern Europe) Pertaining to a modification of viscose fibers in which the cellulose is copolymerized.
n
(chemistry, mining, geology, artisanship) Metastable glass of volcanic or dyke origin.
n
Synonym of chanca piedra
n
Synonym of sleekstone
adj
Alternative spelling of stony-iron [(of a meteorite) Having approximately equal parts iron and silicates.]
n
(physics) A phase of matter in which superfluidity and an amorphous (glassy) structure are present at the same time
n
Alternative form of watch glass [(chemistry) An item of glass laboratory equipment consisting of a simple, slightly concave circle of glass. It is a general utility item, used to hold small samples, to evaporate liquids, to cover a beaker, and so on.]
n
Synonym of corestone

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