Artificial Gemstones - A Collection of Historical Articles on the Production of Synthetic Gemstones PDF Download

Author: Michael O'Donoghue
Publisher: Robert Hale
ISBN: 9780719803314
Category : Crafts & Hobbies
Languages : en
Pages : 294

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Book Description
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
Publisher: Read Books Ltd
ISBN: 1473394341
Category : Science
Languages : en
Pages : 76

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Book Description
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: Ram Babu Sao
Publisher: Ram Babu Sao
ISBN:
Category : Body, Mind & Spirit
Languages : en
Pages : 486

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Book Description
Gemology is the science dealing with natural and artificial gemstone materials. It is considered a geosciences and a branch of mineralogy. This book, ‘Introduction to Gemstone Astrology’ is a unique book, which is very informative and also easy to understand. One book is truly the equivalent of several books on Gemstones Astrology. You can make predictions of suitable gemstones as per the horoscope of individual or your family member with the help of this single book. This provides some of the elementary and in depth essential elements on complete gemstone predictions. Many of the basics on gemstone astrology are explained in detail. “Money is Prosperity”. Astrology is not knowing your future, but planning your future by averting the misshapenness by action in the right time by wearing Gems, wearing Yantras, chanting Mantras and Prayers. It is important to realize that success comes only with the right actions at the right time. The whole secret of Astrology is “Right Timing”. This Book provides the best gemstone for successful ventures such as starting a business, buying a home, or investing in the Stock Market. JP Morgan made a fortune using a suitable gemstone. This knowledge is made available to you though this book. By using the book, your life will be more prosperous than ever before. It is important to work “Smartly” but not hard. Many people need to know about their financial status. Money controls the way we live our lives, and this amazing readings will give you the insight, you need to take control of your financial future. It could be one of the most important gemstones reading that you will get through this book that can truly change your life. This book will isolate time to capture the situation and reveal its significance. At last, you have discovered a direct channel that will allow you an insight into your own destiny by wearing a suitable and correct gemstone. Many “psychic services” charge you as much as $50, $75, or even $100 for a single reading of gemstone selection, but, this book offers

Author: Walter Schumann
Publisher: Sterling Publishing Company, Inc.
ISBN: 9781402768293
Category : Antiques & Collectibles
Languages : en
Pages : 328

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Book Description
"Gemstones of the World" is an essential resource for every hobbyist, jeweler, or jewelry maker. More than 1,500 full-color photos showcase each precious and semiprecious stone in its rough, natural, polished, and cut renditions.

Author: Bruce Cairncross
Publisher: Penguin Random House South Africa
ISBN: 1431702579
Category : Nature
Languages : en
Pages : 94

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Book Description
Sasol First Field Guide to Gemstones of Southern Africa is a fascinating guide to the gemstones of the region. Full-colour photographs and easy-to-read text will help the beginner and budding naturalist to identify the more common gemstones that occur in southern Africa, discover where they are found, and learn about their unusual features.

Author: Ruth Kassinger
Publisher: Twenty-First Century Books
ISBN: 9780761321088
Category : Juvenile Nonfiction
Languages : en
Pages : 88

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Book Description
In Ceramics: From Magic Pots to Man-Made Bones, Kassinger covers the history of ceramics from the eleventh century B.C., when the first ceramic pots were made in Japan, to the present. She also relates some of the myths associated with these valuable crafts and explains the science behind their production. Book jacket.

Author: Mohsen Manutchehr-Danai
Publisher: Springer Science & Business Media
ISBN: 3662042886
Category : Science
Languages : en
Pages : 575

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Book Description
The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.

Author:
Publisher: BRILL
ISBN: 9004106901
Category : Art
Languages : en
Pages : 378

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Book Description
A collection of eleven chapters which explore the question of forgery from different disciplinary angles and in varied national contexts, using the concept of performance to gain greater insight.

Author: S.Chand Experts
Publisher: S. Chand Publishing
ISBN: 8121934206
Category : Nature
Languages : en
Pages : 33

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Book Description
Gemstones are made from rare crystals which are mined throughout the w•orld for their beauty and their value. Some gemstones also have special properties which make them ideal for use in manufacturing. Contents: what are gemstones ? | gems from the earth

Author: Michael O'Donoghue
Publisher:
ISBN:
Category : Crafts & Hobbies
Languages : en
Pages : 250

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Book Description