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Provides a complete coverage to the tremendous range of treatments available to enhance the colour and appearance of gemstones. This includes various types of irradiation and heat treatments, colourless impregnations, bleaching, dyeing, diffusion and other processes. Some of these processes date back at least 2000 years, others are of quite recent origin. This edition includes advances such as glass and plastic filling of diamonds and other gemstones, the large expansion in the use of both heat and irradiation treatments and the efforts to keep up identification procedures with the advances in treatments. The book is written for gemmologists to simplify their work: by knowing the details of the possible treatment techniques, the treatments that have been applied to the gemstone under study can be more readily recognized. Collectors, dealers, jewellers, appraisers, pawnbrokers and others interested in gemstones will also gain added insight from knowing the range of possible treatments.
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Book Description Butterworth-Heinemann. Condition: Acceptable. USED We here at Elistics have a 100% satisfaction guarentee. We also ship no later than next business day. Thank you for your business. Seller Inventory # 23-B-7-000516
Book Description Butterworth-Heinemann. PAPERBACK. Condition: Good. 0750617977 Good; Softcover; Moderate wear to the covers; Clean textblock edges; Name insdie the front cover and address to the first endpaper; Text pages are clean & unmarked; Good binding with a straight spine; This book will be stored and delivered in a sturdy cardboard box with foam padding; Medium Format (8.5" - 9.75" tall); White covers with photo of bluish gemstones & title in blue lettering; 2nd Edition; 1994, Butterworth-Heinemann Publishing; 252 pages; "Gemstone Enhancement: History, Science and State of the Art," by Kurt Nassau. Seller Inventory # SKU-T55AH02310055
Book Description Butterworth-Heinemann, 1994. Paperback. Condition: Good. 2. Ships with Tracking Number! INTERNATIONAL WORLDWIDE Shipping available. May not contain Access Codes or Supplements. May be ex-library. Shipping & Handling by region. Buy with confidence, excellent customer service!. Seller Inventory # 0750617977
Book Description Butterworth-Heinemann, 1994. Condition: Good. A+ Customer service! Satisfaction Guaranteed! Book is in Used-Good condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear and contain limited notes and highlighting. Seller Inventory # 0750617977-2-4