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Actinolite Alexandrite (chrysoberyl) Almandine (garnet) Amber Amethyst (quartz) Ametrine (quartz) Andradite (garnet) Andalusite Apache Tear (obsidian) Apatite Aquamarine (beryl) Axinite Barite Benitoite Beryl Bixbite (beryl) Bytownite (feldspar) Calcite Cassiterite Cerussite Chrysoberyl Citrine (quartz) Clinozoisite (epidote) Cordierite (iolite) Corundum Cubic Zirconia (CZ) Danburite Demantoid (garnet) Diamond Diopside Dravite (tourmaline) Ekanite Elbaite (tourmaline) Emerald (beryl) Epidote Euclase Feldspar Fluorite Gadolinium gallium garnet (GGG) Garnet Goshenite (beryl) Gypsum (selenite) Hauynite Heliodor (beryl) Hiddenite (spodumene) Indicolite (tourmaline) Idocrase Iolite Kornerupine Kunzite (spodumene) Kyanite Labradorite (feldspar) Moldavite Morganite (beryl) Obsidian Opal Orthoclase (feldspar) Padparadschah (corundum) Peridot Petalite Piemontite (epidote) Phenacite (phenakite) Prasiolite (quartz) Quartz Rhodochrosite Rhodolite (garnet) Rubellite (tourmaline) Ruby (corundum) Sapphire (corundum) Scapolite Scheelite Selenite Sinhalite Sphalerite Sphene Spinel Spodumene Schorl (tourmaline) Spessartite (garnet) Sunstone (feldspar) Tanzanite Topaz Topazolite (garnet) Tourmaline Tektite (moldavite) Tsavorite (garnet) Verdelite (tourmaline) Vesuvianite (idocrase) Wulfenite YAG (Yttrium aluminum garnet) Zincite Zircon Zoisite (tanzanite)
Descriptions of Gem Materials - $23.95 Third Edition Revised ![]() ![]() Soft cover, 8.5" x 11", 159 pages, copyright 2006 Sample page Descriptions of Gem Materials is the most complete reference on natural and man-made gem materials available for gem cutters, gemologists and all others with an interest in gemstones. It provides a basis for gem identification and prepares the cutter for what may be expected when cabbing, carving or faceting a particular material. It covers the physical and optical properties for 346 distinct natural minerals and 56 man-made gems, more than 550 gem materials in all. Included are complete sets of tables for hardness, specific gravity and refractive index and information on common inclusions for each mineral. A complete list of varietal, alternate and incorrect names is presented and the pronunciation and derivation of gem names is provided. Descriptions of Gem Materials is organized by eight major sections: Section 1 - Natural Gem Materials, Section 2 - Man-made Gem Materials, Section 3 - Table of Hardness, Section 4 - Table of Specific Gravity, Section 5 - Table of Refractive Index, Section 6 - Glossary of Important Geological Terms, Section 7 - Index of Alternate, Varietal and Incorrect Names, and Section 8 - Bibliography of Selected References.
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