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Marc Notes:
Color map on endpaper.;Translation of: Edelsteine und Schmucksteine.;Includes index.
Table of Contents:
Preface -- Introduction -- Gemstones and Their Influence -- Terminology -- The Nomenclature of Gemstones -- Origin and Structure of Gemstones -- Crystal Systems -- Properties of Gemstones -- Hardness -- Cleavage and Fracture -- Density and Specific Gravity -- Weights Used in the Gem Trade -- Optical Properties -- Color -- Color of Streak -- Changes in Color -- Refraction of Light -- Double Refraction -- Dispersion -- Absorption Spectra -- Transparency -- Luster -- Pleochroism -- Light and Color Effects -- Luminescence -- Inclusions -- Deposits and Production of Gemstones -- Types of Deposits -- Mining Methods -- Cutting and Polishing of Gems -- Engraving on Stones -- Cutting and Polishing Agate -- Cutting and Polishing Colored Stones Cabochon Cutting -- Faceting -- Ball Cutting -- Cylinder Cutting -- Drilling Gemstones -- Cutting and Polishing Diamond -- Types and Forms of Cut -- Types of Cut -- Forms of Cut -- Classifications of Gemstones -- Scientific Classification -- Commercial Classification -- Value of Gemstones -- Description of Gemstones -- Best-Known Gemstones -- Diamond -- Diamond Occurrences -- Diamond Production -- Diamond Trade -- Valuation of Diamonds -- Famous Diamonds -- Development of the Brilliant Cut -- Corundum Species -- Ruby -- Sapphire -- Beryl Species -- Emerald -- Aquamarine -- Precious Beryl -- Chrysoberyl -- Spinel -- Topaz -- Garnet Group -- Zircon -- Tourmaline Group -- Spodumene Species -- Hiddenite -- Kunzite -- Quartz -- Rock Crystal -- Smoky Quartz -- Amethyst -- Amethyst Quartz -- Citrine -- Prasiolite -- Rose Quartz -- Aventurine -- Prase -- Blue Quartz -- Quartz Cat's-Eye -- Hawk's Eye -- Tiger's-Eye -- Chalcedony -- Cornelian -- Sard -- Chrysoprase -- Bloodstone -- Dendritic Agate -- Moss Agate -- Agate -- Layer Stones -- Jasper -- Petrified Wood -- Opal Species -- Jade -- Peridot -- Zoisite Species -- Tanzanite -- Thulite -- Anyolite -- Hematite -- Pyrite -- Feldspar Group -- Amazonite -- Moonstone -- Orthoclase -- Labradorite -- Aventurine Feldspar -- Rhodochrosite -- Rhodonite -- Turquoise -- Lapis Lazuli -- Sodalite -- Azurite -- Malachite -- Lesser-Known Gemstones -- Andalusite -- Euclase -- Hambergite -- Iolite -- Phenakite -- Dumortierite -- Danburite -- Axinite -- Benitoite -- Cassiterite -- Epidote -- Idocrase -- Sinhalite -- Kornerupine -- Prehnitc -- Petalite -- Scapolite -- Diopside -- Beryllonite -- Brazilianite -- Amblygonite -- Enstatite -- Lazulite -- Dioptase -- Apatite -- Sphene -- Kyanite -- Scheelite -- Variscite -- Fluorite -- Hemimorphite -- Smithsonite -- Sphalerite -- Cerussite -- Chrysocolla -- Serpentine -- Stichtite -- Ulexite -- Tiger's-Eye Matrix -- Gemstones for Collectors -- Rocks as Gemstones -- Onyx Marble -- Tufa -- Landscape Marble -- Orbicular Diorite -- Obsidian -- Moldavite -- Alabaster -- Agalmatolite -- Meerschaum -- Fossils -- Organic Gemstones -- Coral -- Jet -- Cannel Coal -- Ivory -- Odontolite -- Amber -- Pearl -- Operculum -- Mother-of-Pearl -- Imitation and Synthetic Gemstones -- Imitations -- Combined Stones -- Synthetic Gemstones -- Treatment -- Genuineness Test for Diamond -- New on the Market -- Symbolic and Beneficial Gemstones -- Cosmic-Astral Symbolic Stones -- Medicinal Stones -- Bibliography -- Table of Constants -- Index.
Biographical Note:
Walter Schumann is a leading expert and researcher on gemstones. In addition to the perennially successful
Gemstones of the World, first published in 1976, he has authored
Collins Guide to Rocks, Minerals, and Gemstones and
Handbook of Rocks, Minerals, and Gemstones, among other authoritative rock and mineral identification guides. Schumann lives in Germany.
Publisher Marketing:
Truly the ultimate one-volume book every hobbyist, jeweler, jewelry maker, and rockhound will ever need! Chock-full of more than 1,500 full-color photos showcasing each precious and semiprecious stone in both its rough and polished state, this bestselling reference book from leading geology expert Walter Schumann will be your go-to identification guide.
Following the spectacular success of the first four editions of Gemstones of the World, the revised fifth edition exhibits important updates and a beautiful new cover. All the gemstones ever discovered are treated here in their many variations. More than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough natural state and its polished and cut renditions. Each entry offers complete information on a stone's formation and structure; physical properties and characteristics; and methods of working, cutting, and polishing.
You'll find full treatments of lesser-known gems and minerals--from andalusite to vesuvianite--and a special section devoted to rocks as precious stones, including alabaster, onyx, obsidian, and fossils. Organic gem materials such as coral, ivory, amber, and pearl are also covered, along with more recently discovered stones like charoite. Additionally, this all-inclusive rocks and minerals book includes imitations, synthetics, and combined stones. Charts and tables help you identify unknown gemstones and--when you're in the market--how to check for authenticity.
Whether you're a beginner rock enthusiast or geologist, or are looking for a crystal book to support your spirituality practice, Gemstones of the World will bring new beauty and wisdom to your bookshelf.
Review Citations:
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Wilson Senior High Catalog 04/11/2019 (EAN 9781454909538, Hardcover)
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