Gemstone
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Gemstones
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Author : Michael O'Donoghue
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Gemstones written by Michael O'Donoghue and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.
Gemstones And Their Origins
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Author : P.C. Keller
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Gemstones And Their Origins written by P.C. Keller and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves presents an eloquent chronicle of the Earth's life story. It reveals to the expert the prodigious processes which formed the present crust of our planet, of which this volume discloses a small but exciting detail. The materials of the Earth's crust are the rocks. In this book, the author expounds on how they were formed, why they altered, why they became the cradles of precious gemstones, how they are categorized, and how they are now exploited by man. What initiates the growth of gemstones? How do they crystallize? Why do gemstones of the same species, originating from different sources, vary? What causes the occurrence of varieties? Why do diamonds, unlike other precious stones, occur not near the Earth's surface in its crust, but deep down beneath it in the upper mantle? These are only a few of the entrancing subjects discussed in this enlightening volume. The reader learns that the Earth is surprisingly alive and altering constantly-sometimes through slow and equable changes and at times by violent and tremendous cataclysms, events from which gemstones issue.
Colored Gemstones
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Author : Antoinette Leonard Matlins
language : en
Publisher: Gemstone Press
Release Date : 2005
Colored Gemstones written by Antoinette Leonard Matlins and has been published by Gemstone Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Antiques & Collectibles categories.
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!
Gemstone Mineral Data Book
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Author : John Sinkankas
language : en
Publisher:
Release Date : 1974
Gemstone Mineral Data Book written by John Sinkankas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Design categories.
Gemstones Collins Gem
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Author : Cally Oldershaw
language : en
Publisher: HarperCollins UK
Release Date : 2013-11-28
Gemstones Collins Gem written by Cally Oldershaw and has been published by HarperCollins UK this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-28 with Science categories.
A handy guide identifying over 170 types of the world’s gemstones with beautiful colour photography taken from the Smithsonian Institution’s archives.
Gemstones
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Author : Karen Hurrell
language : en
Publisher: Chartwell Books
Release Date : 2016-12-15
Gemstones written by Karen Hurrell and has been published by Chartwell Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-15 with Nature categories.
This fascinating work provides a truly stunning visual guide to the beautiful world of gemstones. It brings together a wealth of information in clearly worded text accompanied by a dazzling collection of color photographs showing gems in their natural and cut states. From subjects as diverse as identifying and collecting minerals and advanced testing, to ethical sourcing of gems, every aspect of gemstones is covered, and is presented with a wealth of research in easy-to-understand sections, making it a must-have reference work for anyone who wants to delve into the exciting world of gems.
Gemstones
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Author : Cally Hall
language : en
Publisher: DK Publishing (Dorling Kindersley)
Release Date : 1994
Gemstones written by Cally Hall and has been published by DK Publishing (Dorling Kindersley) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Design categories.
Designed for beginners and experienced collectors alike, these field guides make identification of individual specimens sure, simple and straightforward. Each entry has a full color illustration as well as color-coded bands that provide at-a-glance facts for quick reference. Easy to use and beautiful to look at, this series is an invaluable resource for every collector.
Gemstones
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Author : Robin Hansen
language : en
Publisher: Princeton University Press
Release Date : 2022-04-12
Gemstones written by Robin Hansen and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-12 with Nature categories.
Originally published: London: Natural History Museum, 2022, as: The Natural History Museum book of gemstones: a concise reference guide.
Tables Of Gemstone Identification
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Author : Roger Dedeyne
language : en
Publisher: Gemstone Identification
Release Date : 2007
Tables Of Gemstone Identification written by Roger Dedeyne and has been published by Gemstone Identification this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Precious stones categories.
Gemstone Healing
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Author : Michael Gienger
language : en
Publisher: Simon and Schuster
Release Date : 2014-08-11
Gemstone Healing written by Michael Gienger and has been published by Simon and Schuster this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-11 with Body, Mind & Spirit categories.
Worn as jewelry, in cosmetics, as gemstone water, placed under your pillow to work as you sleep, used as part of your meditation or in a massage, the gemstones promote strength and wellbeing. Crystal healing expert Michael Gienger explains how healing stones can exert their beneficial and healthy effects on the body, mind and soul. For example: rock crystal acts as antipyretic, malachite promotes detoxification, aquamarine helps to combat allergies, amber improves sleep and amethyst promotes clear thinking. Gemstone Healing is the first guide to list the full range of applications for 36 crystals and will provide all the information you need to treat yourself, your family and friends. The reader will come to understand the effects of the crystals and learn how to choose, use and look after them properly. With full color illustrations throughout and stunning photographs of each of the 36 crystals, this guide gives both the reader new to using crystals and those who have some experience of crystal healing a whole new view of the subject.