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THE REDUCTION OF CHLORIDE ORES
1880
Science
For the benefit of those not familiar with the processes of reducing gold and silvcr ores, a brief cxplanation of what is meant by " free milling," an expression so often used by mining mcn, may not be out of place. In separating, by amalgamation, the precious metals from gangue or waste rock with which they are almost always associated, it is necessary to the success of the process to present the particles of gold or silver contained in the orc to ttic mercury with wvhich they are to be
doi:10.1126/science.os-1.11.119
pmid:17844128
fatcat:h5vnesf4onhrdkmsrqf5f3f33i