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Volume 8 Issue 1
Mar.  2006
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LAN Yan, ZHAO Man-qu, CHEN Chun. Characteristics of Iridium-Doped Gold Jewelry and Its Determination[J]. Journal of Gems & Gemmology, 2006, 8(1): 13-14.
Citation: LAN Yan, ZHAO Man-qu, CHEN Chun. Characteristics of Iridium-Doped Gold Jewelry and Its Determination[J]. Journal of Gems & Gemmology, 2006, 8(1): 13-14.
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Characteristics of Iridium-Doped Gold Jewelry and Its Determination

  • Shenzhen Laboratory, National Centre for Quality Supervision and Testing of Gemstone, Shenzhen 518026, China

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  • Received Date: October 07, 2005
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  • The superficial characteristics of iridium-doped gold jewelry and the occurrence and the chemical compositions of doped material in gold jewelry have been investigated by using optical microscopy and X-ray fluorescence spectrum analysis.The results show that the doped materials are iridium,ruthenium,osmium,etc,which occur in independent phase.The proportion ofw(Ir+Os)∶w(Ru) is 65%~70%∶30%~35%.The densities of the doped materials are consistent with that of gold.The doping materials in gold jewelry result in the insufficient purity.The testing metheds of iridium-doped jewelry are probed.
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