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Gold & Silver Recovery Methods Book-Electric Parts-Jewelry-Mercury-Refining

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By I. J. S. Enterprises, 44 pages, chapters on how to use mercury to recover gold, fluxing andfiring of gold and silver ore, how to use Aqua Regia to purify gold, how to use nitric acid to purifysilver, clean gold, and separate gold and silver dore bars, recovering silver from photograph film,recovering gold and silver from jewelry and electronic parts and gold/silver/gemstone conversiontable.


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