Gemstone Enhancement: Heat, Irradiation, Impregnation, Dyeing, and Other Treatments Which Alter the Appearance of Gemstones, and the Detection of Such Treatments
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📖 Description
1984 Butterworth Publisher. First Edition. Clean and unmarked, edges slightly age tanned. Dust jacket clean and bright, glossy surface scratched, edge ware. Proceeds benefit Oro Valley Public Library.