翡翠中钠铬辉石的矿物学特征研究

殷小玲, 项贤彪, 彭明生

殷小玲, 项贤彪, 彭明生. 翡翠中钠铬辉石的矿物学特征研究[J]. 宝石和宝石学杂志, 2007, 9(2): 5-7.
引用本文: 殷小玲, 项贤彪, 彭明生. 翡翠中钠铬辉石的矿物学特征研究[J]. 宝石和宝石学杂志, 2007, 9(2): 5-7.
YIN Xiao-ling, XIANG Xian-biao, PENG Ming-sheng. Mineralogical Characteristics of Ureyite in Jadeite Jade[J]. Journal of Gems & Gemmology, 2007, 9(2): 5-7.
Citation: YIN Xiao-ling, XIANG Xian-biao, PENG Ming-sheng. Mineralogical Characteristics of Ureyite in Jadeite Jade[J]. Journal of Gems & Gemmology, 2007, 9(2): 5-7.

翡翠中钠铬辉石的矿物学特征研究

详细信息
    作者简介:

    殷小玲(1969—),女,工程师,硕士,主要从事珠宝鉴定工作。

  • 中图分类号: P619.28

Mineralogical Characteristics of Ureyite in Jadeite Jade

  • 摘要: 采用电子探针、X射线衍射和吸收光谱分析研究翡翠中钠铬辉石的矿物学特征。结果显示,钠铬辉石与翡翠呈共生关系;其分子式为(Na0.83Ca0.02)(Cr0.78Al0.10Fe0.08Mg0.02) Si2.06O6;晶胞参数 a=9.530 Å,b=8.672 Å,c=5.264 Å,β=107.51°,V=414.88;密度为3.55g/cm3;钠铬辉石中Cr3+的晶体场跃迁决定了其具有深浅程度不同的绿色调。
    Abstract: In the paper, mineralogical characteristics and compositions of ureyite in jadeite jade are studied by using EPMA, X-ray diffraction and absorption spectroscopy analysis.The results show that ureyite is paragenous with jadeite jade, and the chemical formula of ureyite is(Na0.83Ca0.02)(Cr0.78Al0.10Fe0.08Mg0.02) Si2.06O6.The unit cell parameters of ureyite are a=9.530 Å, b=8.672 Å, c=5.264 Å, β=107.51°, V=414.88 and the density is 3.55g/cm3.Different shades of green in ureyite are related to the crystal-field transition frequency of Cr3+.
  • [1]

    Qui Mei Ou Yang.A terrestrial source of ureyite[J].The American Mineralogist 1984,69(1):180-183.

    [2]

    V M Khomenko A N Platomav.Electonic absorption spectra of Cr3+ zones in natural clinopyroxens[J].Physchem Minerals 1985,11(6):261-265.

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出版历程
  • 收稿日期:  2007-03-16

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