To wash gold


Related to To wash gold: Gold plating
to treat earth or gravel, or crushed ore, with water, in order to separate the gold or other metal, or metallic ore, through their higher density.

See also: Wash

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An example is gold mining operations that use a toxic cyanide solution to wash gold from ore.
Within this target area, historical mining activity is evident in a series of trenches and dams that were used in a placer operation to wash gold from the bedrock.