In an underground mine, a long horizontal face or ledge of ore in a stope or working place. The horizontal step or floor along which coal, ore, stone, or overburden is worked or quarried.

A recovery process in which a slurry of gold ore, carbon granules and cyanide are mixed together. The cyanide dissolves the gold content and the gold is adsorbed on the carbon: the carbon is subsequen [..]

A naturally occurring, deep-yellow to pale-yellow alloy of gold with silver; argentiferous gold, containing more than 20% silver.

A processing plant erected to treat ore and extract gold

The sum of the channel width and external waste widths.

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A horizontal passage from the surface into a mine. Sometimes called a tunnel.

A geological feature, esp. in the subsurface, distinguished by geological, geophysical, or geochemical means, which is different from the general surroundings and is often of potential economic value, [..]