Opal Identification & Value

Opal Identification & Value

Author: Paul B.. Downing

Publisher: Gem Guides Book Company

Published: 2003

Total Pages: 232

ISBN-13:

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New edition with added chapters and sections. Provides all the information necessary for complete analysis and evaluation of any opal from a true gem. Properly identify opals from all over the world and what characteristics affect value. Breathtaking color photos throughout.


A Field Guide to Australian Opals

A Field Guide to Australian Opals

Author: Barrie O'Leary

Publisher: NAG Press

Published: 1977

Total Pages: 168

ISBN-13:

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"Written especially for the opal collector and gemmology student, as well as for the opal miner or visitor to the opal fields, this bokk names every recorded opal deposit in Australia and pinpoints every location on concise geologial maps. The text claifies in understandable terms the many mioneralogical, gemmological, and commercial complexities of the opal gemstone and explains the scientific factors involved in opal formation." - book jacket.


Opals

Opals

Author: Fred Ward

Publisher:

Published: 1997

Total Pages: 0

ISBN-13: 9780963372383

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This book is the latest in the popular Fred Ward Gem Book Series. The full-color photographs give the buyer and enthusiast all the information needed to understand the various types of opals and the ability to buy them wisely.


Secrets of the Gem Trade

Secrets of the Gem Trade

Author: Richard W. Wise

Publisher:

Published: 2006

Total Pages: 0

ISBN-13: 9780972822381

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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.


Gemologue

Gemologue

Author: Liza Urla

Publisher: Antique Collector's Club

Published: 2018

Total Pages: 0

ISBN-13: 9781851498819

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Liza Urla is the author of the jewelry blog, Gemologue https://gemologue.com/tag/jewelry-blog


Opal Cutting Made Easy

Opal Cutting Made Easy

Author: Paul B. Downing

Publisher:

Published: 1993-01-01

Total Pages: 97

ISBN-13: 9780962531149

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Proven step-by-step approach to cutting opal. Easy-to-use guide that takes the beginner through the first stone to advanced cutting techniques, including doublet and triplet making.


Gemstones of the World

Gemstones of the World

Author: Walter Schumann

Publisher: N. A. G. Press

Published: 2001

Total Pages: 279

ISBN-13: 9780719803017

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A comprehensive manual of the world's gemstones and includes more than 1,400 examples. Opposite each illustration, this text provides a description of the particular stone, including details of the properties and chemical composition which makes the stone unique. It also gives information on location of major deposits, and alternative names.