Extracting gold from rock OpenLearn Open University
Gold ore stamp mill sale mantelzorgleiderdorpnl. Gold Fever Giant Gold Machines Hard Rock Mining Hard rock miners had to mill, or crush the quartz ore They worked stamp mills to pulverize the ore to a powder Early stamp mills had two to five stamps Later, banks of forty or more were used Gold was then separated from this fine powder by the use of mercury, or quicksilver as it was called