4 oz Assay Fluorspar (Calcium Fluride CaF2) Gold Recovery-Flux-Smelting-Thinner
This is for 4 oz of Assay Grade Fluorspar (Calcium Fluride CaF2). Fluorspar is used for many things including as a thinner for Flux. Gold Recovery from Black sands, Gold & Silver Recovery from Bench Grinds. Many different Flux recipes for many different functions.
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