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| lafda.com | Characteristics and classification | Synthetic and artificial gemstones | Gemstone list | Ruby | Sapphire | Emerald | Amethyst |
Gemstone list
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There are over 130 species of minerals that have been cut into gems
with 50 species in common use. These include: Agate Alexandrite and other varieties of chrysoberyl Amethyst (originally a "cardinal gem", but now no longer so, since huge quantities were discovered in Brazil and the price plummeted) Aquamarine and other varieties of beryl Chrysocolla Chrysoprase Diamond Emerald Feldspar (moonstone) Garnet Hematite Jade - jadeite and nephrite Jasper Kunzite |
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Lapis lazuli Malachite Obsidian Olivine (Peridot) Opal (Girasol) Pyrite Quartz and its varieties, such as tiger's-eye, citrine, agate, and amethyst Ruby Sapphire Spinel Sugilite Tanzanite and other varieties of zoisite Topaz Turquoise Tourmaline Zircon Minerals that infrequently occur in gem quality form: Andalusite Axinite Benitoite Bixbyte (Red beryl) Cassiterite Clinohumite Iolite Kornerupine Natural moissanite Zeolite (Thomsonite) Artificial or synthetic materials used as gems include: High-lead glass Synthetic cubic zirconia Synthetic corundum Synthetic spinel Synthetic moissanite There are a number of organic materials used as gems, including: Amber Bone Coral Ivory Jet (lignite) Mother of pearl Ammolite - from fossils formed from the shells of extinct ammonites. Pearl Tortoiseshell |
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| lafda.com | Characteristics and classification | Synthetic and artificial gemstones | Gemstone list | Ruby | Sapphire | Emerald | Amethyst |