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.
Emerald from Malipo in Yunnan Province was studied in this paper by using electron probe microana- lyzer （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 V203 is signifi- cantly 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 substi- tutions of Malipo emerald are of “octahedral-type” used to determine the origin of the emerald. The mineralogical characteristics of Malipo emerald can be used to determine the origin of the emerald.
出处
《岩石矿物学杂志》
CAS
CSCD
北大核心
2015年第1期103-109,共7页
Acta Petrologica et Mineralogica
作者简介
黄文清（1982－），男，汉族，硕士，国家注册珠宝玉石质检师，主要从事宝玉石矿物学研究，E-mail：67019822@qq．com。
