Extracting gold from rock - OpenLearn - Open University
Aug 30, 2019· Crushing the rock Crushing the gold bearing rock is not as simple as it sounds. We can't just hit it with a hammer because pieces will fly everywhere and we may lose some of our gold. ... We used mercury to get the gold out of the powdered rock. Gold, like most minerals, can be 'dissolved' in mercury to form what's called an amalgam. An amalgam ...
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