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Investigating & Understanding Fire Assaying DVD Gold-Silver-Ore-DIY-How To
Investigating & Understanding Fire Assaying DVD Gold-Silver-Ore-DIY-How To
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Investigating & Understanding Fire Assaying DVD
By Mike Glenn. Exhibits an in-depth introduction to assaying. A necessary 2½ hour video tool covering chemistry, procedures of the fire assay of both oxide and sulfide ores, down to weighing the assay bead.
Mike Glenn,narrates and simplifies the assaying procedure.
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