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Gems of the World - CALLY OLDERSHAW

Gems of the World

CALLY OLDERSHAW

 
24,95 $

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EN SAVOIR PLUS Résumé

"Lavishly illustrated, Gems of the World is intended for anyone who has ever been fascinated by crystals, jewelry, and gems, from general readers to seasoned professionals. It is a fine addition to general collections."
--Booklist, on the previous edition

Gems of the World is a practical and comprehensive guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. This edition has been revised and thoroughly updated. Changes and new features include updated maps of recently established diamond bourses and geographical country changes, plus new gem varieties and localities where they are found, new techniques for producing synthetic gemstones and simulants, and much more.

There is comprehensive information on gems:

gem formation
mining
the diamond industry
conflict diamonds
ethical sourcing
crystal structure (diagrams and cuts)
optical and physical properties
fashioning and cutting (properties and uses)
gemstone cuts for diamonds
buying a diamond
buying colored gemstones
imitation and synthetic gemstones
gemstone enhancement
history of gems
famous diamonds
caring for gemstones and jewelry
a color key of 139 gemstones.

The text describes the world's diamond cutting and trading centers, the "diamond pipeline" that flows from mine to retail, and information on the gemstone industry, ethical mining, conflict diamonds and the emergence of new diamond centers.

The description directory of gemstones is organized by their chemical composition. The 139 profiles describe each gem's geology, chemistry, properties (such as color, refractive index, and luster), cultural use in history and its value in jewelry. Photographs show the gem as a raw crystal, in common cuts, polished for use, and in some cases, also in a piece of jewelry.

Gems of the World is an ideal reference for gemologists, collectors and general readers.

Détails
Prix : 24,95 $
Catégorie :
Auteur :  CALLY OLDERSHAW
Titre : Gems of the World
Date de parution : octobre 2017
Éditeur : FIREFLY
Sujet : MINERAUX ET FOSSILES
ISBN : 9780228100072 (02281000711)
Référence Renaud-Bray : 12397763
No de produit : 2258640

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Gems of the World , OLDERSHAW, CALLY
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