云南麻栗坡祖母绿的矿物学特征研究
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Mineralogical characteristics of emerald from Malipo, Yunnan Province
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    摘要:

    利用电子探针、X射线衍射等技术对云南麻栗坡祖母绿进行了矿物学研究,结果表明祖母绿含碱金属和铁镁质两组主要微量元素;V2O3含量明显高于Cr2O3,表明主要是V致色;折射率No=1.584~1.586,Ne=1.576~1.579,相对密度S.G=2.70±0.01;类质同像替代以八面体替代为主。麻栗坡祖母绿的矿物学特征可用于作为产地鉴定的依据。

    Abstract:

    Emerald from Malipo in Yunnan Province was studied in this paper by using electron probe microanalyzer (EPMA), XRD and other technologies and, on such a basis, the characteristic features of Malipo emerald have been established: it contains two sets of trace elements (femic and alkali); the content of V2O3 is significantly higher than that of Cr2O3, which shows that V is the main element causing color; the refractive indices are No=1.584~1.586, Ne=1.576~1.579, and the specific gravity is 2.70±0.01; the isomorphous substitutions of Malipo emerald are of "octahedral-type". The mineralogical characteristics of Malipo emerald can be used to determine the origin of the emerald.

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黄文清,倪培,水汀,杨佩,2015,云南麻栗坡祖母绿的矿物学特征研究[J].岩石矿物学杂志,34(1):103~109. HUANG Wen-qing, NI Pei, SHUI Ting, YANG Pei,2015,Mineralogical characteristics of emerald from Malipo, Yunnan Province[J]. Acta Petrologica et Mineralogica,34(1):103~109.

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  • 收稿日期:2014-04-06
  • 最后修改日期:2014-11-13
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  • 在线发布日期: 2015-01-20
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