Read and Download eBook Full
Author: Paul B.. Downing
Publisher: Gem Guides Book Company
Published: 2003
Total Pages: 232
ISBN-13:
DOWNLOAD EBOOKNew 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.
Author: Paul B. Downing
Publisher:
Published: 1992-01-01
Total Pages: 210
ISBN-13: 9780962531125
DOWNLOAD EBOOKAuthor: Walter Scott
Publisher:
Published: 1829
Total Pages: 310
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul B. Downing
Publisher:
Published: 1993-01-01
Total Pages: 97
ISBN-13: 9780962531149
DOWNLOAD EBOOKProven 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.
Author: Paul B. Downing
Publisher:
Published: 1999
Total Pages: 0
ISBN-13: 9780962531156
DOWNLOAD EBOOKMaster opal cutting and design information applicable to any cabochon material. In this sequel to Opal Cutting Made Easy, Learn all the techniques regularly offered in other books plus new hints, information and ideas not previously in print!
Author: Isidore Kozminsky
Publisher:
Published: 1922
Total Pages: 488
ISBN-13:
DOWNLOAD EBOOKAuthor: Stephen Aracic
Publisher:
Published: 1999
Total Pages: 415
ISBN-13: 9780959583021
DOWNLOAD EBOOKAuthor: Barrie O'Leary
Publisher: NAG Press
Published: 1977
Total Pages: 168
ISBN-13:
DOWNLOAD EBOOK"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.
Author: Various
Publisher: Read Books Ltd
Published: 2015-05-06
Total Pages: 44
ISBN-13: 1473394120
DOWNLOAD EBOOKThis 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. Each publication has been professionally curated and includes all details on the original source material. This particular instalment, "Opal Gemstones" contains information on their properties, origins, structure and much more. Intended to illustrate the main features of opal 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.
