The overall format of previous editions has been maintained and new information has been incorporated in a similar style. This edition has two new chapters, on the manufacture and enhancement of gemstones and the old chapter on the detection of synthetic, imitation and composite stones has been rearranged. In the past decade the development of new synthetics has proceeded apace. Nowadays clean rubies and emeralds need very careful investigation since they could be natural or synthetic. However careful use of the microscope can still elucidate many problems and new instruments are shown in the text.
"synopsis" may belong to another edition of this title.
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Hardcover. Condition: Fair. No Jacket. Missing dust jacket; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0408004401I5N01
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Hardcover. Condition: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0408004401I5N00
Seller: THIS OLD BOOK, Brookfield, IL, U.S.A.
Hardcover. Condition: Very Good. Dust Jacket Condition: Very Good Dust Jacket. This book with dust jacket is clean, solid and in great shape! This is a hardcover book with 434 pages including many photos and illustrations. The binding is strong with all pages firmly attached. The pages are clean with no soiling, writing, or tears. The copyright page shows 1980n as the published date. The dust jacket is over 99% intact with a tiny chip on the top of the front next to the spine, light edgewear and a one-inch closed tear on the top of the front and on the top of the back next to the spine. I have placed the DJ in a fresh mylar jacket and this book looks and feels great! We always ship in a sturdy box! Seller Inventory # 22337
Seller: RON RAMSWICK BOOKS, IOBA, CARLSBAD, CA, U.S.A.
Hard Cover. Condition: Very Good. Dust Jacket Condition: Very Good. Updated Ninth Edition of this classic. 434 pages, illustrated. Seller Inventory # 42513
Seller: Anybook.com, Lincoln, United Kingdom
Condition: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:0408004401. Seller Inventory # 5758437
Quantity: 1 available
Seller: Bingo Books 2, Vancouver, WA, U.S.A.
Hardcover. Condition: Near Fine. Dust Jacket Condition: Near Fine. ninth edition,hardback book and dust jacket in near fine condition. Seller Inventory # 30848
Seller: Broad Street Book Centre, Hereford, United Kingdom
Hardcover. Condition: Fine. Dust Jacket Condition: Fine. 9th edition. Ninth edition, reprinted 1982. 457pp. Col. & b/w plates and illus. Excellent condition. Dust jacket protected. OVERSEAS ORDERS MAY INCUR EXTRA SHIPPING. Seller Inventory # 111570
Seller: Borkert, Schwarz und Zerfaß GbR, Berlin, Germany
hardcover. Condition: Sehr gut. 9th ed. 457 p. With a personal inscription. Good copy with slight marks of age and use. The pages are clean. - - Since 1971, when the eighth edition of Gem Testing appeared, developments in gemmology have taken place very rapidly. The techniques of crystal growing are now so well understood that almost any gemstone, if required, can be produced in the laboratory, in addition many hard crystalline substances not found in nature have been manu factured and used to represent natural stones - in particular diamond, This long-established work is a practical manual on gem identification, designed to aid all those (students of gemmology, jewellers and even experi- enced gemmologists) who need to identify gem- stones and to distinguish natural stones from the numerous man-made substitutes now available. The preliminary chapters give a clear and thorough description of the physical and optical characters of gem minerals and of the apparatus by which these properties can be observed and measured. This general section ends with an important chapter describing all types of synthetic and Imitation stones at present on the market, and their distinctive characters. There follows a series of chapters on the well-known gemstones, giving a full description of their properties and those of the synthetic or substitute materials with which they may be confused. The appendix includes a glossary, an explanation of crystal systems, a summary of the main gem species in alphabetical order, tables of constants and a reading list. The tests and methods described are based, as far as possible, on the author's many years of experience as Director of the Gem Testing Laboratory of the London Chamber of Commerce, and include techniques that were originally evolved in this famous laboratory. In this ninth edition, a large number of new synthetic gem materials and several new varieties of natural stones are fully described and the means of identification given. New instruments such as various forms of reflectivity meters are described. Notes on testing industrial diamond powders have been added, and a description of ivory and its substitutes is now included. - - How to Use this Book - - Collecting, Handling, and Housing Gemstones - - Refractive Index and its Measurement - - Double Refraction and Dispersion - - Colour, Colour Filters, and the Dichroscope - - The Specific Gravity of Gemstones and How to Measure it - - The Use of the Microscope - - Detection of Synthetic, Imitation and Composite Stones - - The Use of the Spectroscope - - Fluorescence as an Aid to Identification - - The Identification of Diamond - - The Identification of Ruby - - The Identification of Sapphire - - The Identification of Emerald - - - Aquamarine and Alexandrite - - - Zircon - - - Topaz and Other Yellow Stones - - - Pink, Mauve, or Lilac Stones - - - Brown and Orange Stones - - Quartz, Chalcedony, and Opal - - - The Garnet Family - - - Tourmaline, Peridot, and Spinel - - - Jade and Jade-like Minerals - - - Turquoise and Lapis Lazuli - - - Cat's-eyes, Star-stones, and Others - - - Amber, Tortoiseshell, Coral, Jet and Ivory - - - Pearls: Real, Cultured, and Imitation. ISBN 9780408004404 Sprache: Englisch Gewicht in Gramm: 742. Seller Inventory # 1278298
Seller: Cronus Books, Carson City, NV, U.S.A.
hardcover. Condition: New. 9th. Super Rare. * Dust cover has some very minor shelf wear. ~ NEW inside and Out! Clean & Crisp Pages w/No markings. (Email for more info./pics). Seller Inventory # 231022045