云南麻栗坡祖母绿生长环带特征

发布时间：2018-07-17 08:04

【摘要】：利用宝石学、背散射电子图像和电子探针方法对云南麻栗坡祖母绿"生长环带"的颜色分带与化学组分的对应关系进行研究,并探讨其生长环带现象产生的原因。结果表明:云南麻栗坡祖母绿生长环带特征明显,生长环带颜色的差异与微量元素的种类和含量有关;属于典型的富Na、Mg、V、贫Cr型祖母绿,且绿色与Cr~(3+)、V~(3+)有关,并且Cr~(3+)、V~(3+)含量越高,祖母绿颜色越深;Cr~(3+)、V~(3+)含量差异直接导致了生长环带现象,产生深绿环带和浅绿环带,同时生长环带与生长期次有关,具有多期性特征。
[Abstract]:The relationship between the color band and the chemical components of the growth band of the emerald in Malipo, Yunnan Province was studied by means of gemmatics, backscatter electron image and electron probe method, and the causes of the phenomenon of the growth band were discussed. The results showed that the characteristics of the emerald growth ring in Malipo, Yunnan Province were obvious, and the color difference of the growth band was related to the species and content of trace elements, which belonged to the typical rich NaClO MgV, poor Cr type emerald, and the green was related to Cr ~ (3) and Cr ~ (3) V ~ (3), and the difference of the color of the growth band was related to the species and content of trace elements. And the higher the content of Cr ~ (3) and V ~ (3), the deeper the color of emerald is, the difference of the content of Cr ~ (3) O ~ (3) V ~ (3) leads directly to the phenomenon of growth band, which leads to the phenomenon of dark green ring and light green ring, and the growth ring is related to the growth stage and has the characteristics of multi-period.
【作者单位】：昆明理工大学城市学院;中国地质大学(北京)珠宝学院;昆明理工大学国土资源学院;
【基金】：国家自然科学基金(41502087) 国家岩矿化石标本资源共享平台项目
【分类号】：P619.2

【相似文献】