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Fire assays have been the method of detecting gold for thelast 5000 years
This is pre-mixed Flux and ready for you to add your Black Sands
Includes chapters on collecting meteorites and tektites
The Scope of Fire Assaying
5-Pound Anhydrous Borax - Gold Recovery - Flux Smelting-Refining-Jewlery -Silver repair Fire assays have been theThis is for 5 Pounds Anhydrous Borax in the Granular form. Anhydrous Borax is used for many things including Gold Recovery from Black sands, Gold & Silver Recovery from Bench Grinds. Many different Flux recipes for many different functions. Note; We also sell Hank Chapmans Book on Smelting. "How to Smelt Gold & Silver" look for it in the DIY Books section
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