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General

General nature or nature terms.

Contributors in General

General

retort

Mining; General

A vessel in which substances are distilled or decomposed by heat.

rocker

Mining; General

A device for washing gold-bearing earth to recover the precious metal.

shaft

Mining; General

A vertical entrance to a mine cut downward from the surface.

square set

Mining; General

A set of timbers used for support in underground mining.

stamp mill

Mining; General

a machine for crushing ore by the weight of constantly falling pieces of iron, stone, or wood. The action approximates the pulverizing of material with a mortar and pestle.

stope

Mining; General

An excavation created by the removal of ore and consequent widening of the drift.

tailings

Mining; General

finely ground particles of ore deposited as waste after processing by a mill or smelter.

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