Gems of the World 2024 pdf epub mobi 电子书


Gems of the World

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发表于2024-11-09

Gems of the World 2024 pdf epub mobi 电子书

Gems of the World 2024 pdf epub mobi 电子书

Gems of the World 2024 pdf epub mobi 电子书



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出版者:Firefly Books
作者:Cally Oldershaw
出品人:
页数:256
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出版时间:2009-09-01
价格:USD 24.95
装帧:Paperback
isbn号码:9781554075393
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Gems of the World 2024 pdf epub mobi 电子书 图书描述

""A wonderful reference guide to the field of gemology.... Comprehensive and] lavishly illustrated." -- Booklist" This is a practical, comprehensive guide to the identification and use of precious and semiprecious gems, novelty stones, agates and crystals. Presenting information on the gemstone industry, with an extensive section on ethical mining, conflict diamonds and the emergence of new diamond centers, "Gems of the World" is a completely up-to-date reference. Oldershaw clearly explains the geology, chemistry, properties and key aspects of gemstones. The book includes descriptions of a wide range of gems, each profiled with a color photograph showing its raw crystal, common cuts and polished state for use in jewelry. At-a-glance charts identify refractive index, crystal group, luster, hardness and cleavage. In addition to handsome illustrations of priceless jewelry, the book provides practical information on: Fashioning and cutting Collecting, handling and storing Weighing and measuring Lapidary and jewelry-making Choosing a gemstone, including buying abroad Caring for and cleaning gemstones and jewelry Spotting a fake Finding the best museums and retail outlets around the world. With its detailed descriptions, abundant illustrations and expert commentary on current developments, "Gems of the World" is an ideal reference for gemologists, collectors, investors and general readers.

Gems of the World 2024 pdf epub mobi 电子书

Gems of the World 2024 pdf epub mobi 电子书
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