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Inc Ore Mining Gold Extraction New

Inc Ore Mining Gold Extraction New

Feb 14 2020 Its one thing to find the gold but its a whole other challenge to extract the gold from the ore profitably. Extracting gold before the 20th Century was mostly done by using gravity separation placer mining. This is like the old California miners panning in the river. However in the 20th Century a scientist discovered cyanide could leach gold .
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