n
(geology) A kind of coal, historically found near the surface, which split like shale rock and burned with medium smoke, a yellow flame and a sulfur smell.
n
(mining) A damp consisting chiefly of carbon dioxide, so called for its ability to asphyxiate.
n
The compressed clay of coal strata.
n
(geology) A stratum of coal between strata of other rocks.
adj
Having been enveloped in a cloud of soot from the exhaust of a coal roller, who rolled coal, who engaged in coal-rolling.
n
(mining) In placer mining, earth, gravel, etc., before washing.
n
Obsolete form of ore. [Rock or other material that contains valuable or utilitarian materials; primarily a rock containing metals or gems for which it is typically mined and processed.]
n
(mining) The surface of a mine.
n
(mining) A hard stratum of rock other than coal.
n
(now historical) Synonym of Dead Sea.
n
Alternative form of lime pit [A limestone quarry.]
n
Measurement, especially of coal.
n
(obsolete) A mine from which ores are taken.
n
(obsolete) A mine or mineral deposit.
n
(mining) Alternative form of miner's moss [(mining) Carpeting in sluice boxes used to collect heavy minerals from sluiced paydirt.]
n
The solid residual material resulting from the mining of coal.
n
(geology) An aggregated mass of any ore or mineral, in an isolated state, within a rock.
n
Rock or other material that contains valuable or utilitarian materials; primarily a rock containing metals or gems for which it is typically mined and processed.
n
(geology) The rock and subsoil that lies above a mineral deposit such as a coal seam.
n
(geology, obsolete South Africa) Synonym of pipe: a channel for lava within a volcano; the cylindrical remains of such channels.
n
(geology) A joint or fissure, as in a coal seam.
v
(geology, mining) To determine which minerals or metals are present in a location.
n
earth or materials made into a bank after having been excavated
n
Alternative spelling of rock hound [(idiomatic) A person who collects rocks and minerals from the natural environment as a hobby.]
n
(thermodynamics, industrial planning) A thermal storage battery which uses sand as the storage medium.
n
(historical, chiefly Southern England) Coal from across the sea: mineral coal, as opposed to charcoal, in a time and place in which the former arrived by ship and the latter arrived overland (such as London in Elizabethan times).
n
(geology) A thin stratum, especially of an economically viable material such as coal or mineral.
n
(UK, mining) The layer of sedimentary rock underlying a coal seam.
n
Alternative spelling of shaleionaire [A person who has become rich by allowing natural gas to be extracted from a shale deposit situated below land they own.]
n
(geology) The rock and subsoil that lies next to a mineral deposit such as a coal seam.
n
(mining) A layer of earth between coal seams.
n
A sediment of accumulated minerals in a steam boiler.
n
Small fragments of coal; slack.
n
A coal which has a grade between bituminous coal and anthracite, and which was once widely used as a fuel for steam engines in ships and locomotives.
n
(geology) The rock and subsoil that lies below a mineral deposit such as a coal seam.
n
(geology) A stratum of clay lying beneath a coal bed.
n
(geology, mining) A thin layer or band of rock that separates or defines the boundaries of thicker strata.
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