Aqua Regia Gold Recovery Chemicals | Urea, Gold Precipitant, Nitric Substitute, Stannous Chloride. • Confirm dissolved gold using stannous chloride. Stannous Chloride Test Solution – 1/2 oz (Premixed).
Gold Silver Diamond Tester Selector Gemstone Testing Kit Digital Electronic Tool
GTE Diamond Analyzer Electronic Tester with LED Display – Portable Gemstone Tool Kit + Bonus Diamond Gauge Sizer. Compact and easy to use, the GTE Diamond Analyzer is an essential tool for any jewelry toolkit.