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Mar.  1999
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Qiu Zhili, Chen Binghui, Zhang Yuguang. TESTING OF COPAL RESIN AND AMBER[J]. Journal of Gems & Gemmology, 1999, 1(1): 35-39.
Citation: Qiu Zhili, Chen Binghui, Zhang Yuguang. TESTING OF COPAL RESIN AND AMBER[J]. Journal of Gems & Gemmology, 1999, 1(1): 35-39.
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TESTING OF COPAL RESIN AND AMBER

  • 1. GJIRC of Zhong shan U niversity, Guangzhou, 510275;

  • 2. Goods and Materials Bureau of Guangdong Province, Guang zhou, 510000

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  • Received Date: October 21, 1998
    Graphical Abstract
    • Abstract
  • The dis tinction between N ew Zealand K auri copal and amber was reviewed. T hen the gemmo-logical characteristics, inclusions and infrared spectra of the tested copal specimens were studied. The results show that copal can be distinguished from amber by testing with alcohol and infrared spectrum， but physical properties such as SG, RI and fluorescence as well as inclusions must be used carefully in identification.
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    • References (4)
  • [1]
    周佩玲.有机宝石与投资指南、武汉:中国地质大学出版社, 1995.176~186
    [2]
    汤耀翔, 珺泽.钻翠珠宝鉴赏.广州:广东人民出版社,1998.320~327
    [3]
    Spencer J A Currie. A study of New Zealand Kauri copal. The Journal of Gemmology, 1997, 25(6); 408~416
    [4]
    Dieter 0 Hummel. Atlas of polymer and plastics analysis.1984, 2: 2527~2573
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