Gemstone & Mineral Data Book;

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"This book is a compilation of data, recipes, formulas and instructions designed specifically for use by mineralogists, gemologists, jewelers and lapidaries."--Pref. The twelve chapters cover basic weights, measures, conversions and mathematical formulas; chemicals; equipment; abrasives, polishing agents, buffs and laps; metals and jewelry data; coloring gemstones and minerals; physical properties; chemical testing; cleaning; nomenclature and optical properties. Published 1972.