Gemstones - Properties, Identification and Use
Arthur Thomas

Description
Gemstones - Properties, identification and use is a comprehensive guide to the
fascinating world of precious and semi-precious crystals. As well as the naturally
occurring minerals, such as diamonds, emeralds and rubies, which have long beenprized as gemstones, the book covers 'organic gems', such as pearls, amber and coral, and synthetic gems and simulants, or imitations.

An introductory section examines the appeal of gemstones, the history and the
popularity of collecting, the basic rock types, principles of crystal formation and
physical properties, while the main encyclopedic section provides information on theorigins and makeup of around 140 major stones, their properties and qualities, as well as major world sources.
The latter sections of the book cover the cutting and finishing processes, the ways in which stones can be enhanced or 'improved' and offers pointers on starting a collection and exploring the subject in greater depth.

About the Author - Arthur Thomas
Arthur Thomas is a gemmologist and gem dealer based in Sandton, Johannesburg. He has more than 50 years' experience in the gem trade, both as a dealer and educator. He is a Fellow of the Gemmological Association of Great Britain, a Graduate Gemologist of the Gemological Institute of America (GIA) and founder of the Gemmological Association of South Africa.