云南红宝石矿床中镁砂川闪石的发现及其意义  

DISCOVERY OF MAGNESIO-SADANAGAITE IN A RUBY DEPOSIT OF YUNNAN AND ITS SIGNIFICANCE

作　　者：王礼胜[1] 王濮[1] 张建洪[1] 白金刚 

机构地区：[1]中国地质大学

出　　处：《地质论评》1997年第4期409-414,共6页Geological Review

摘　　要：镁砂川闪石是1984年在日本发现的一个新矿物,在世界上产地很少。笔者在国内首次发现镁砂川闪石,它产于云南哀牢山红宝石矿床中。本文对其物理性质、化学成分、X射线粉晶衍射和红外吸收光谱等方面进行了研究。镁砂川闪石的发现及其化学成分所指示的富铝、贫硅、含铬和铁极少的生成环境,对于钙质闪石晶体化学的研究和红宝石矿床的找矿与评价,具有重要的理论和实际意义。Mgnesio-sadanagaite is a new mineral species found in Japan in 1984. Its occurrences in the world are very scarce. It was first found by the authors in China in a ruby deposit in the Ailao Mountains, Yunnan Province. Its physical properties, chemical composition and X-ray powder diffraction and infrared absorption spectra have been studied. The finding of magnesio-sadana-gaite and its formation environment featuring AlzO3-rich, SiO2-poor, Cr2O3-bearing and FeO-poor indicated by its chemical compositions is of important theoretic and practical significance for the study of crystal chemistry of calcic amphiboles and for the exploration and evaluation of ruby deposits.

关 键 词：镁砂川闪石 矿物标型 红宝石矿床 钙质闪石 

分 类 号：P619.281[天文地球—矿床学]