Gold extraction methods

Gold extraction involves separating gold from rocks or ore. One common method is crushing the ore into smaller pieces, then using chemicals like cyanide to dissolve the gold. The gold-laden solution is then processed to recover the gold, often through techniques like adsorption or filtration. Alternatively, in some cases, mercury is used to bind with gold, which is then heated to vaporize the mercury and collect the pure gold. In modern operations, physical processes like gravity separation or flotation are also employed to concentrate gold before chemical treatment, making extraction more efficient and environmentally responsible.