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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

Preço normal $75.00 USD
Preço normal Preço promocional $75.00 USD
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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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