n
A kind of calcareous rock where organisms have acted as baffles during deposition, reducing the local depositional energy.
n
(countable) An example (a stone) of the mineral beryl.
n
A kind of calcareous rock where organisms (such as alga)e encrust the elements during deposition and bind them together.
n
(geology) A form of sandstone from the Cretaceous age used as a building stone
adj
Consisting of or containing chalk.
n
A mineral specimen used in various cultural and spiritual traditions for its supposed mystical energies.
n
A form of coal having stratifications parallel to the bedding plane.
n
(geology) A compact stratum of partially permeable material rich in clay.
n
A yellow oolitic Jurassic limestone.
n
A solid calcareous or siliceous framework maintained by an organism such as a coral or sponge.
n
A natural stone formation that is difficult to distinguish from a man-made artifact.
n
(uncountable, figuratively) Toughness; the quality of having a thick skin or being rough.
n
(geology) A greenish sandstone containing glauconite.
n
(geology) A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
n
A loose, earthy deposit from water, found in the cavities or clefts of rocks, mostly white, but sometimes red or yellow, from a mixture of clay or ochre.
adj
(obsolete) Of the nature of stone; stony.
n
Alternative spelling of limestone [An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO₃); it occurs in a variety of forms, both crystalline and amorphous.]
adj
Having a deposit of limescale.
n
A yellowish, compact, fine-grained slaty limestone used in lithography.
adj
Made of loam; consisting of loam.
n
A soft sandstone with calcareous cement.
n
(geology) Marl when hardened into stone.
n
A Jurassic marine sedimentary rock formation underlying much of southeast England, from as far west as Dorset and as far north as Yorkshire.
n
The lightweight insulating material and aggregate resulting from expanding perlite glass by heat.
n
Native alum mixed with clay and iron oxide, usually in soft masses of a yellowish-white colour, occurring in cavities and fissures in argillaceous slate.
n
A calcareous rock consisting of coarse limestones supported by grains larger than two millimetres.
n
A sedimentary rock produced by the consolidation and compaction of sand, cemented with clay etc.
n
(geology) A soft, earthy variety of trap-rock of a brownish-grey colour, looking like an argillaceous deposit.
Note: Concept clusters like the one above are an experimental OneLook
feature. We've grouped words and phrases into thousands of clusters
based on a statistical analysis of how they are used in writing. Some
of the words and concepts may be vulgar or offensive. The names of the
clusters were written automatically and may not precisely describe
every word within the cluster; furthermore, the clusters may be
missing some entries that you'd normally associate with their
names. Click on a word to look it up on OneLook.
Our daily word games Threepeat and Compound Your Joy are going strong. Bookmark and enjoy!
Today's secret word is 6 letters and means "Not working as originally intended." Can you find it?