Gold mining - Wikipedia

Gold mining is the resource extraction of gold by mining. ... Romans used hydraulic mining methods, ... They also process gold with mercury, ...

Gold extraction - Wikipedia

Gold extraction refers to the processes required to extract gold from its ores. This may require a combination of comminution, mineral processing, hydrometallurgical ...

Gold processing | Britannica

Gold processing: Gold processing, preparation of the ore for use in various products. For thousands of years the word gold has connoted something of beauty or value.

Silver processing | Britannica

Silver processing: Silver processing, ... Silver-bearing ores are mined by open-pit or underground methods and then are ... The gold and silver alloy thus produced is ...

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