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:
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.
Download or read book Man made Gemstones written by Dennis Elwell and published by . This book was released on 1979 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
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.
Download or read book Artificial Gemstones A Collection of Historical Articles on the Production of Synthetic Gemstones written by Various and published by Read Books Ltd. This book was released on 2015-05-06 with total page 76 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.
Download or read book Gemstones written by Cally Hall and published by DK Publishing (Dorling Kindersley). This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unearth a treasure trove of knowledge of over 130 gemstones from around the world. Learn how gemstones are formed and how to recognise them by their unique qualities and colours. A wonderful book for beginners, students, and gemstone-enthusiasts that includes the latest scientific research and gemstone classification. Gemstones is filled with all you need to know about these fascinating minerals - cut and uncut stones, organic gemstones, and precious metals. Inside you'll find: - Fast facts for quick reference, including chemical composition, hardness, gravity, lustre, and reflective value - Photo close-ups of key details and highlights of distinguishing features - Illustrations of faceting and shapes popular for each gemstone - A detailed introduction to everything a beginner gemologist needs to know including how gemstones form, the different properties, crystal shapes, faceting, and the history of gems Delve into the one-of-a-kind characteristics, colours, and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone's entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems. Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified, and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones, and precious metals. It includes a glossary for many more technical and scientific terms and over 800 high-quality photos of gems. It's the ideal gift for any budding gemologist The DK Handbook series is an incredible collection of titles that fascinate curious minds. Other books include Rocks and Minerals, Dinosaurs, and Prehistoric Life, and Stars and Planets.
Download or read book Gemstones written by Cally Hall and published by DK. This book was released on 2002 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a concise description of each gemstone, photographs showing characteristics and distinguishing features, and information on where gemstones are found and their natural properties.
Download or read book Ruby Sapphire Emerald Buying Guide written by Renee Newman and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide helps buyers to evaluate these spectacular gems and it updates professionals on new treatments and sources of corundum and emerald. Using close-up photographs, the book shows how to make visual judgements about clarity. transparency, cut quality and brilliance. In addition, it helps you to understand lab reports and find appraisers and labs. You will also get tips on detecting imitations and synthetic stones. Let this guide provide the in-depth information you will need to be a smart buyer. Topics in this guide include: Quality evaluation; Gem treatments; Fakes and synthetics; Lab reports; Geographic sources; Appraisals; Gem cleaning & care; Savvy buying.
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!
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:
Download or read book Simon and Schuster s Guide to Gems and Precious Stones written by Curzio Cipriani and published by Simon & Schuster. This book was released on 1986 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Simon & Schuster's Guide to Gems and Precious Stones" provides both the connoisseur and the casual collector with a compact, easy-to-use volume describing more than 100 rare varieties of minerals whose beauty and mystery have possessed our imaginations from time immemorial. More than 450 brilliant photographs accompany profiles of each gem, covering such aspects as appearance, physical properties -- density, hardness, refraction -- occurrence, and how to judge quality and value. Additional sections describe the process of cutting gemstones and the techniques professional gemologists use to evaluate a stone's weight and optical properties. Detailed and comprehensive, this book is essential for anyone interested in the study of gems and precious stones.
Download or read book Gemstones written by Nora Aphismai Phayackaporn and published by Bluetoffee. This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gemstones: A Thai Love Story presents an essential reference guide to the world of Thai gems, for every level of interest. In four beautifully illustrated sections, the book furnishes buyers with all they need to know about buying gems in Thailand, in an easy-to-read format, set in a context of Thai history and culture. The buyer's guide is designed to cut through the complex process of gem identification and authentication. Each gem is described precisely, highlighting its distinguishing characteristics and variations, as well as its man-made imitators. The guide also acquaints readers with the history and origin of each gem and provides useful tips on how to make a good purchase, and look after the gem subsequent to purchase. An introduction to the Thai gem manufacturing process and key markets gives the layman some insight into the gem industry in Thailand, and the intricacies of gem trading, equipping the reader with the knowledge he requires when he visits one of the most exciting gem markets of the world. Finally, a concise glossary gives understanding of the technical terms used within the book.
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.
Download or read book Gemstone Information Manual written by American Gem Trade Association AGTA (Dallas, TX). and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthetic and Other Man made Gems written by Ralph Jerome Holmes and published by . This book was released on 1960 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Secrets of the Gem Trade written by Richard W. Wise and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive book for anyone wanting to learn how the best gemologists in the world evaluate precious gems, and what makes one stone merely a good stone versus a truly fabulous museum-quality gem. The author, Richard W. Wise, is one of the world's foremost gemologists.
