5 Terms
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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
spudded-in
Mining; General mining
A term applied to a borehole that has been started and the hole has reached bedrock and/or the standpipe has been set.
monkey face
Mining; General mining
A term applied to a chain bracket to be inserted between adjacent shaker conveyor troughs to permit suspension of the trough line from the roof.
dactylitic
Mining; General mining
A term applied to a rock texture produced by a symplectic intergrowth, in which one mineral is penetrated by fingerlike projections from another mineral; also, said of a rock exhibiting such texture.
one-piece set
Mining; General mining
A term applied to a single stick of timber, called a post, stull, or prop. Post and prop are applied to vertical timbers, and stull is applied to inclined timbers, or those placed horizontally.
parting slate
Mining; General mining
A term applied to a thin layer of slate between two seams of coal.
temper hardening
Mining; General mining
A term applied to alloys that increase in hardness when heated after rapid cooling; also to the operation of producing this. Also called artificial aging; distinguished from aging or age hardening, ...
