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Author: Eduard Josef Gübelin
Publisher:
ISBN:
Category : Design
Languages : en
Pages : 244
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Book Description
Author: Eduard Josef Gübelin
Publisher:
ISBN:
Category : Design
Languages : en
Pages : 244
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Book Description
Author: Antoinette Matlins
Publisher: Turner Publishing Company
ISBN: 0943763894
Category : Antiques & Collectibles
Languages : en
Pages : 366
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Book Description
one person can accomplish big things.
Author: Lance Grande
Publisher: University of Chicago Press
ISBN: 0226305112
Category : Design
Languages : en
Pages : 387
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Book Description
"Gems and Gemstones" features nearly 300 color images of cut gems, precious and semiprecious stones, gem-quality mineral specimens, and fine jewelry to be unveiled in the new Grainger Hall of Gems at the Field Museum in Chicago.
Author: Anthony de Goutière
Publisher: FriesenPress
ISBN: 146023278X
Category : Art
Languages : en
Pages : 74
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Book Description
Viewed through a microscope, some gemstones and crystal specimens reveal amazing photogenic inclusions and surface features that could well be mistaken for abstract art. With the use of various lighting techniques and careful composition, gemmologist and photographer Anthony de Goutière has photomicrographed many of these unusual and artistic scenes. The author hopes to inspire other gemmologists to search for and photograph the elusive beauty of gemstone inclusions.
Author: Nora Aphismai Phayackaporn
Publisher: Bluetoffee
ISBN: 9810559380
Category : Gems
Languages : en
Pages : 164
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Book Description
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.
Author: Michael O'Donoghue
Publisher: Springer Science & Business Media
ISBN: 9400911912
Category : Science
Languages : en
Pages : 395
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Book Description
Gemstones is the first attempt in English to bring together the geological, mineralogical and gemmological developments that have taken place during the last thirty years. Though there have been many gemstone books published in that time, most have been concerned, understandably and rightly, with the science of gem testing and have covered that area very well. Details of the geological occurrence of many of the classic gemstones, and of nearly all those which have only recently been discovered, have been less adequately dealt with. Coverage has been restricted to a number of papers in a wide variety of geological and mineralogical journals. Gemstones hopes to get the balance right. In the preparation of the book all the journals and monographs in the field have been consulted so that the book should stand for some years as the authority to which gemmologists and others turn in the first instance. Ease of reference and depth of coverage make Gemstones both a reference book and a bench book. Acknow ledgements I am grateful to Brian Jackson of the Department of Geology, Royal Museums of Scotland who read the manuscript and painstakingly indicated places where amendment or alteration was needed. I am also grateful to the publishers of the books on which the line illustrations are based. The colour plates present in the book derive from a number of sources, which I would like to acknowledge as follows. Plates 1, 4-15 and 17 Crown copyright reserved.
Author: Antoinette Matlins
Publisher: Turner Publishing Company
ISBN: 0943763932
Category : Antiques & Collectibles
Languages : en
Pages : 467
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Book Description
This colorful book offers you a window into the world of Mahatma Gandhi, one of the most amazing people of the twentieth century. You will learn about Gandhi’s life—from his time as a student in London to his work for equality in South Africa and India—and his methods of peaceful, but not passive, resistance to injustice.
Author: P. G. Read
Publisher: Elsevier
ISBN: 1483144674
Category : Nature
Languages : en
Pages : 375
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Book Description
Gemmology is a text for students preparing for the Gemmological Association's Preliminary and Diploma examinations. The book is more expansive and up-to-date than the author's earlier book, Beginner's Guide to Gemmology. The book deals with the practical and theoretical sides of gemmology. Tracing the background and science of gemmology, the book covers the gem material, geological formation, and occurrence of gemstones on the earth. The composition of gemstones from the atoms, elements, molecules, and compounds comprising them is analyzed, and the relationship between chemical composition and durability of the stone is explained. The basics of crystallography is mentioned as a tool toward understanding gemmology after which cleavage, parting, and fracture are done. A gemstone's durability and hardness and how the latter influences engineering tests and the mining techniques are compared. An important test technique to identify unmounted stones is the measure of specific gravity using displacement measurement methods and hydrostatic methods. After more descriptive details are given in identification of gemstones, whether these are synthetic or simulants, through a comprehensive explanation of the materials found in these other gemstones, the fashioning, through shaping or polishing, of gemstones is explained. Emphasis is given on the critical angle in which light rays pass in different rock densities, and then the cutting styles, gemstone polishing, and grading are discussed. Students studying for the Gemmological Association's Preliminary and Diploma examinations, jewelers, lapidarists, and diamond cutters, as well as those engaged in the hobby of gemmology, will find this book helpful and full of information toward their endeavors and hobbies.
Author: Peter G. Read
Publisher: Butterworth-Heinemann
ISBN: 0750664495
Category : Design
Languages : en
Pages : 341
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Book Description
This edition has been completely revised to cover the latest methods of gem enhancement and identification, as well as the most up-to-date test instruments and laboratory techniques.
Author: Eduard Josef Gübelin
Publisher:
ISBN: 9783039990290
Category : Crystals
Languages : en
Pages : 829
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Book Description
