Download or read book Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals written by Robert Webster and published by Read Books Ltd. This book was released on 2013-04-18 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This vintage book contains an interesting and practical study of the identification of gemstones, pearls, and ornamental minerals. A comprehensive and profusely-illustrated handbook for both novice and experienced practitioners, this volume is not to be missed by anyone with a keen interest in the subject. The chapters of this book include: “Crystallography”, “Physical Properties”, “Specific Gravity”, “Light”, “Measurement of Refractive Index”, “Colour in Gem Distinction”, “The Microscope”, “The Gem Species”, “Synthetic Gems”, “Imitation Gems”, “Composite Stones and Artificially Induced Colour”, etcetera. This book is being republished now in an affordable, modern, high quality edition - complete with a specially commissioned new introduction on gemmology.