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Volume 14 Issue 4
Dec.  2012
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BAO Yong, QU Yan, JIN Ying, ZHAO Wen-juan, BAI Yun-feng. Identification Features of Partially Bleached and Filled Nephrite[J]. Journal of Gems & Gemmology, 2012, 14(4): 35-39.
Citation: BAO Yong, QU Yan, JIN Ying, ZHAO Wen-juan, BAI Yun-feng. Identification Features of Partially Bleached and Filled Nephrite[J]. Journal of Gems & Gemmology, 2012, 14(4): 35-39.
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Identification Features of Partially Bleached and Filled Nephrite

  • Yantai Institute for Quality Supervision & Inspection of Product, Yantai 264003, China

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  • Received Date: August 14, 2012
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    • Abstract
  • As a new method of treatment for nephrite，partial bleach and filling are very popular but because there are other areas of samples that are not treated and natural characteristics are maintained，so partially bleached and filled gems are fraudulent.The characteristics and identification of partially bleached and filled nephrite are studied by using image measuring instrument and FTIR，combined with conventional gemmological inspection instruments.The result shows that some areas of partially bleached and filled nephrite have obvious orange peel structure and intense ultraviolet fluorescence.The authors believe that infrared transmission analysis is the most effective method to identify partially bleached and filled nephrites.
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    • References (3)
  • [1]
    GB/T16553-2010,珠宝玉石 鉴定[S].
    [2]
    张蓓莉.系统宝石学(第二版)[M].北京:地质出版社,2006.122-124.
    [3]
    李建军,孟丽娟,丁秀云.充填软玉的特征及鉴定[J].中国宝石,2006,59(1):58-60.
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