100 LBS Assay Silica 70 Mesh
100 LBS Assay Silica 70 Mesh is ut of stock and will ship as soon as it is back in stock.
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100 LBS Assay Silica 70 Mesh
Used as an ingredient of assaying flux (or flux thinner) for melting or smelting gold and other precious metals.
Formula: Si02
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