A Textbook of Fire Assaying Gold-Silver-Platinum Book by Bugbee 3rd Edition
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Modern Mercury Amalgamation Manual-How to Book-Gold-Silver Recovery Mining
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"The Metallurgy of Gold" by T.K. Rose-Assay-Melting-Refining-Testing-573pgs Book
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Investigating & Understanding Fire Assaying DVD Gold-Silver-Ore-DIY-How To
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Refining Precious Metal Wastes Book Kit-Chapman Flux & Thinner+Conical Mold
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Small Scale Refining of Jewlwers Waste-Cast Iron Mold+Chapman Flux-Thin-Borax
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Refining Precious Metals Waste-Cast Iron Mold+Chapman Flux-Thinner-Borax
