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Synopsis
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.
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Gem Testing
Seller: Goodwill Books, Hillsboro, OR, U.S.A.
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Condition: acceptable. Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included. Seller Inventory # GICWV.0408023201.A
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Gem Testing
Seller: WorldofBooks, Goring-By-Sea, WS, United Kingdom
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Hardback. Condition: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged. Seller Inventory # GOR009265521
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Gem Testing
Seller: BennettBooksLtd, Los Angeles, CA, U.S.A.
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hardcover. Condition: New. In shrink wrap. Looks like an interesting title! Seller Inventory # Q-0408023201