Handbook of gem identification - Hardcover

Handbook of gem identification.

hardcover. Zustand: Gut. 11th ed. 450 p. With a personal inscription. Good copy with marks of age and use. - - Introduction - - The Nature of Gemstones - - Cleavage, Fracture, and Hardness - - Specific Gravity - - Refractive Index Determination - - Double Refraction, Pleochroism, and Optic Character - - Magnification. - - The Use of Characteristic Imperfections as a Means of Gem Identification - - Color Filters and Fluorescence. - - Synthetic Gemstones. - - Doublets, Triplets, Foil Backs, and Imitations - - Pearls, Cultured Pearls, and Imitations - - The Spectroscope - - Altered Stones and Ancillary Tests - - Instruments Essential to Gem Testing. - - Descriptions and Property Variations of Gemstones - - A Procedure for the Identification of Gem- stones and Their Substitutes. - - - The Identification of Transparent Purple and Violet Gemstones and Their Substitutes - - The Identification of Transparent Blue Gem- stones and Their Substitutes. - - - The Identification of Transparent Green Gemstones and Their Substitutes. - - The Identification of Transparent Yellow Gemstones and Their Substitutes - - The Identification of Transparent Brown and Orange Gemstones and Their Substitutes - - The Identification of Transparent Pink and Red Gemstones and Their Substitutes - - The Identification of Transparent Colorless Gemstones and Their Substitutes. - - The Identification of Nontransparent Violet and Blue Gemstones and Their Substitutes. - - The Identification of Nontransparent Green Gemstones and Their Substitutes - - The Identification of Nontransparent Red, Orange, Yellow, and Brown Gemstones and Their Substitutes - - The Identification of Nontransparent White, Gray, and Black Gemstones and Their Substitutes - - Appendix - - Color Table. ISBN 9780873110068 Sprache: Deutsch Gewicht in Gramm: 864. Artikel-Nr. 1278299

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