This vintage book contains a complete guide to testing gems and gemstones for purity and authenticity. Complete with a plethora of useful illustrations and all the information a prospective or existing enthusiast might need to know about the subject, this book constitutes an ideal resource for anyone with an interest in lapidary and gem testing. The chapters of this volume include: "How to Use this Book", "Refractive Index and its Measurements", "Double Refraction and How to Detect It", "Colour, Colour Filters and ...
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This vintage book contains a complete guide to testing gems and gemstones for purity and authenticity. Complete with a plethora of useful illustrations and all the information a prospective or existing enthusiast might need to know about the subject, this book constitutes an ideal resource for anyone with an interest in lapidary and gem testing. The chapters of this volume include: "How to Use this Book", "Refractive Index and its Measurements", "Double Refraction and How to Detect It", "Colour, Colour Filters and Dichroscope", "The Specific Gravity of Gem-Stones and How to Measure It", "Detection of Synthetic and Imitation Stones", "The Use of the Microscope", etcetera. This antiquarian book is being republished now in an affordable, modern edition - complete with a specially commissioned new introduction on gemmology.
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Add this copy of Gem Testing to cart. $18.89, good condition, Sold by Tom Costin rated 5.0 out of 5 stars, ships from Horsham, WEST SUSSEX, UNITED KINGDOM, published 1971 by Butterworths.
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Seller's Description:
Very Good in Very Good dust jacket. 0408701277. Very good hardcover with unclipped dust jacket. Pages 134 and 135 have some highlighting. No other marks or inscriptions.; Colour & black & white; 8vo 8"-9" tall; 384 pages.
Add this copy of Gem Testing to cart. $21.25, very good condition, Sold by Margaret Taylor Books rated 4.0 out of 5 stars, ships from santa cruz, CA, UNITED STATES, published 1971 by Newnes-Butterworth.
Add this copy of Gem Testing to cart. $30.63, very good condition, Sold by John C. Newland rated 5.0 out of 5 stars, ships from Cheltenham, Glos., UNITED KINGDOM, published 1971 by Newnes-Butterworth.
This is a textbook, second edition, and if gem testing and identification is your thing, this book is excellent. However, the book is beyond the weekend rock hound, unless you?re in an area rich with rubies and diamonds. First tool needed, a wide field binocular microscope, along with your dichroscope. Again, a must for a few.
