The Classification Identification And Characteristics Of Gemstones A Collection Of Historical Articles On Precious And Semi Precious Stones

This book contains classic material dating back to the 1900s and before. The content has been carefully selected for its interest and relevance to a modern audience. Carefully selecting the best articles from our collection we have compiled a series of historical and informative publications on the subjects of gemology and crystallography. The titles in this range include "Gemstone Manufacturing" "The Optical Properties of Gemstones and Crystals" "The Thirty-Two Classes of Crystal Symmetry" and many more. Each publication has been professionally curated and includes all details on the original source material. This particular instalment, "The Classification, Identification and Characteristics of Gemstones" contains information on gemstone varieties, their properties and much more. Intended to illustrate the main aspects of gemstone classification it is a comprehensive guide for anyone wishing to obtain a general knowledge of the subject and to understand the field in its historical context. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

Gemstones is a comprehensive guide to the fascinating world of precious and semi-precious crystals.As well as the naturally occurring minerals that have long been prized as gemstones, such as diamonds, emeralds and rubies, the book covers 'organic gems', including 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 the origins and makeup of around 180 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.

This book contains classic material dating back to the 1900s and before. The content has been carefully selected for its interest and relevance to a modern audience. Carefully selecting the best articles from our collection we have compiled a series of historical and informative publications on the subjects of gemology and crystallography. The titles in this range include "Gemstone Manufacturing" "Geometrical Characters of Crystals" "The Thirty-Two Classes of Crystal Symmetry" and many more. Each publication has been professionally curated and includes all details on the original source material. This particular instalment, "Semi-Precious Stones" contains information on amber, amethyst, agate and much more. Intended to illustrate the main varieties of semi-precious stones it is a guide for anyone wishing to obtain a general knowledge of the subject and to understand the field in its historical context. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

This book contains classic material dating back to the 1900s and before. The content has been carefully selected for its interest and relevance to a modern audience. Carefully selecting the best articles from our collection we have compiled a series of historical and informative publications on the subjects of gemology and crystallography. The titles in this range include "Gemstone Manufacturing" "The Optical Properties of Gemstones and Crystals" "The Thirty-Two Classes of Crystal Symmetry" and many more. Each publication has been professionally curated and includes all details on the original source material. This particular instalment, "The Cutting, Setting and Engraving of Precious Stones" contains information on the methods and equipment of the gem cutter. Intended to illustrate the main aspects of working gems it is a comprehensive guide for anyone wishing to obtain a general knowledge of the subject and to understand the field in its historical context. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.