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Mar.  2011
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LIU Jin-hua, BAI Feng, LUAN Ya-chun. Gemmological Characteristics of Magnesia Spinel in Sapphire Deposit from Changle,Shandong Province[J]. Journal of Gems & Gemmology, 2011, 13(1): 33-36.
Citation: LIU Jin-hua, BAI Feng, LUAN Ya-chun. Gemmological Characteristics of Magnesia Spinel in Sapphire Deposit from Changle,Shandong Province[J]. Journal of Gems & Gemmology, 2011, 13(1): 33-36.
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Gemmological Characteristics of Magnesia Spinel in Sapphire Deposit from Changle,Shandong Province

  • School of Gemmology, China University of Geosciences, Beijing 100083, China

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  • Received Date: August 05, 2010
  • Revised Date: October 13, 2010
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    • Abstract
  • The mineral samples from the Shandong jewelry market are used to imitate sapphire and usually called "Youzi" by the native people.The gemmological,mineralogical and spectral characteristics of the mineral samples are studied by using X-ray powder diffraction,Fourier transform infrared spectrometry and electron microprobe.The results show that the imitation sample is single-crystal magnesia spinel.Isomorphous substitution appeared between Mg2+ and Fe2+,Al3+ and Fe3+.The magnesia spinel from Changle,Shandong province,is fitted for a common value gemstone because of its strong luster,high hardness and durability.The magnesia spinel has the broad application prospects,significant economic value and huge market potential.
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    • References (7)
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