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 – diamonds, emeralds rubies, sapphires – 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.
