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GEMSTONES
by WALLIS, KEITH

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SPECIAL PRICE: HK$ 240.00


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°@ISBN 9781851494941
°@Subject SPORTS, HOBBIES & GAMES
°@Publisher ANTIQUE COLLECTORS' CLUB
°@Publication 2006
°@Edition Hardcover
°@Version Original
°@Description Gemstones is a unique book that introduce the layperson to the exciting world of gemmology in simple and easy to understand terms. As well as the best-known precious stones °V diamonds, emeralds rubies, sapphires °V over 100 gems are featured, with full descriptions, technical details, and tips on how to check for fakes; illustrated throughout with fabulous colour photographs to make identification easier. Technical terms such as refraction, dichroism and fluorescence are explained, and gemmologists°¶ instruments and some basic identification tests are introduced. A helpful tour around the world details where gems are best available and which apparent °•bargains°¶ are best avoided. Informative appendices include a glossary of terms, gems listed by colour, tables of specific gravity and refractive index, and the comparative value of different stones.
 
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