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Author : Michael O'Donoghue
Publisher :
ISBN 13 :
Total Pages : 250 pages
Book Rating : 4.56/5 ( download)
Download or read book A Guide to Man-made Gemstones written by Michael O'Donoghue and published by . This book was released on 1983 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael O'Donoghue
Publisher : Robert Hale
ISBN 13 : 9780719803314
Total Pages : 294 pages
Book Rating : 4.14/5 ( download)
Download or read book Artificial Gemstones written by Michael O'Donoghue and published by Robert Hale. This book was released on 2007-11-30 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title is now in paperback for the first time.Artificial gemstones have been well established in the trade for some time, but now, following further refinements in their manufacture, gemmologists worldwide are facing increasing problems with identification.Today, gem-quality synthetic diamonds, once deemed impossible to produce, are becoming widely available, and, moreover, it is possible to create almost any major gemstone in whatever colour is desired. Then, too, the growth of diamonds by chemical vapour deposition is destined to present further problems. The synthetic products of the past, particularly of the 1960s, are still available, and are puzzling the newer generations of gemmologists who have not encountered them previously.In "Artificial Gemstones", Michael O'Donoghue provides the definitive guide to the various manmade substitutes thus enabling anyone handling gems to identify them accurately. Starting with the theory of synthetic gem manufacture and an explanation of the production methods used for growing and/or improving crystals - with their ornamental application - the book moves on to list and identify the materials themselves. Some of these have natural counterparts; others are new minerals and do not occur in nature. The author lists the identifying internal and external features and tests, and the book contains colour illustrations to display the inclusions found in transparent materials. The book is completed by an extensive bibliography and a useful appendix of trade names.Gemmologists, gem dealers, lapidaries, curators, amateurs and students of gemmology and mineralogy will all find this an indispensable addition to their bookshelves.
Author : Various Authors
Publisher : Read Books Ltd
ISBN 13 : 1473394341
Total Pages : 70 pages
Book Rating : 4.46/5 ( download)
Download or read book Artificial Gemstones - A Collection of Historical Articles on the Production of Synthetic Gemstones written by Various Authors and published by Read Books Ltd. This book was released on 2014-07-07 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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, "Artificial Gemstones" contains information on their identification, production and much more. Intended to illustrate the main features of artificial gemstones 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.
Author : Peter G Read
Publisher : Elsevier
ISBN 13 : 1483183122
Total Pages : 241 pages
Book Rating : 4.21/5 ( download)
Download or read book Beginner's Guide to Gemmology written by Peter G Read and published by Elsevier. This book was released on 2013-10-22 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginner's Guide to Gemmology presents the profiles of the principal gem materials. This book discusses the interesting characteristics of gemstones as the growing consumer market jewelry resulted in increased sales of gem testing instruments. Organized into 12 chapters, this book begins with an overview of the development of the science of gemmology. This text then explains the fundamental qualities necessary in a gem, including color, hardness, specific gravity, crystallography, refractive index, pleochroism, critical angle, luminescence, and absorption spectra. Other chapters consider the organic gem materials, including amber, ivory, coral, tortoiseshell, jet, ebony, and pearl. This book discusses as well the various methods used in the production of man-made gemstones and the commercial use in gem testing. The final chapter deals with the composition of synthetic gemstones. This book is a valuable resource for gemmologists and jewelers. Students who intend to become a qualified gemologist will also find this book extremely useful.
Author : Dennis Elwell
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.72/5 ( download)
Download or read book Man-made Gemstones written by Dennis Elwell and published by . This book was released on 1979 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cally Oldershaw
Publisher : Firefly Books
ISBN 13 : 9781552978146
Total Pages : 228 pages
Book Rating : 4.41/5 ( download)
Download or read book Firefly Guide to Gems written by Cally Oldershaw and published by Firefly Books. This book was released on 2003 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the identification, structure, and uses of precious and semi-precious stones, novelty stones, agates, and crystals.
Author : Antoinette Leonard Matlins
Publisher : Gemstone Press
ISBN 13 : 0943763452
Total Pages : 211 pages
Book Rating : 4.53/5 ( download)
Download or read book Colored Gemstones written by Antoinette Leonard Matlins and published by Gemstone Press. This book was released on 2005 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Purchasing coloured gemstones can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make buying gemstones confusing, intimidating, overwhelming, and costly. With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts, and new ways to buy gems -- such as internet auctions and TV shopping -- there has never been a more exciting time to buy or collect coloured gemstones. But there are also new high-tech treatments and sophisticated frauds to look out for. Lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewellery confusing, intimidating, overwhelming, and costly. Buyers need a source of expert guidance. To help you avoid the pitfalls and keep the magic, Antoinette Matlins, an internationally respected expert on buying gems, puts her insider knowledge to work for you in this easy-to-read, easy-to-use guide. Practical, comprehensive, and easy to understand, the guide offers in depth all the information you need in order to know what to look for and what to look out for, including: what qualifies as a 'gemstone'?; how to evaluate colour -- and its impact on price; deciding between a natural gem and an enhanced gem; coloured gemstone synthesis and treatment; what to ask when buying the stone; what to get in writing; how to get what you want within your budget; price guides for popular gems, opals, and synthetic stones; And much, much more!
Author : Cally Hall
Publisher :
ISBN 13 : 9780241436189
Total Pages : 160 pages
Book Rating : 4.84/5 ( download)
Download or read book Gemstones written by Cally Hall and published by . This book was released on 2021-07 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The clearest and cleanest-cut photographic field guide to over 130 gemstones from around the world This compact visual guide is packed with more than 800 vivid full-colour photographs of more than 130 varieties of cut and uncut stones, organic gemstones, and precious metals. With authoritative text, clear photography, and a systematic approach, this concise guide to identification enables you to recognize each gemstone instantly. Each expertly written entry combines a precise description with annotated photographs to highlight the gemstone's chief characteristics and distinguishing features. Additional colour illustrations and photographs show uncut stones, colour variations, and a range of popular cuts, while bands on each entry provide at-a-glance facts for quick reference. Beginners to gem collecting will benefit from the detailed introduction that defines what a gemstone is, explains the physical and optical properties used to identify and classify gemstones, and shows how they have been fashioned and even imitated throughout history. To help with the initial stages of identification a colour key illustrates the variety of colours found within natural and synthetic gemstones, and a glossary explains the relevant scientific and technical terms.
Author : Kurt Nassau
Publisher :
ISBN 13 :
Total Pages : 408 pages
Book Rating : 4.99/5 ( download)
Download or read book Gems Made by Man written by Kurt Nassau and published by . This book was released on 1980 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joel E. Arem
Publisher :
ISBN 13 : 9780945005094
Total Pages : 159 pages
Book Rating : 4.91/5 ( download)
Download or read book Gems and Jewelry written by Joel E. Arem and published by . This book was released on 1992 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the classic consumer guide to precious stones and their settings is packed full of color photographs and comprehensive information about gems in a portable format. Written simply and clearly, it answers consumers' questions and informs them of what they will encounter in the marketplace. 186 illustrations.
