褐铊矿在我国的首次发现  

THE FIRST DISCOVERY OF AVICENNITE IN CHINA

作　　者：毛水和[1] 卢文全[1] 杨有富 吴永明 

机构地区：[1]地质矿产部矿产综合利用研究所 [2]四川省地矿局区域地质调查队

出　　处：《矿物学报》1989年第3期253-256,293,共4页Acta Mineralogica Sinica

摘　　要：褐铊矿是一种罕见的稀有分散元素铊的矿物,产于西藏洛隆县斯拉沟的天然河流重砂中。与其共生的矿物还有方铅矿、白铅矿,黄铁矿、白钨矿、锆石、锐钛矿、赤铁矿、钛铁矿、重晶石、榍石等。三个颗粒的17个不同部位的电子探针定量分析结果的平均值为:Tl_2O_398.53%,SiO_2 1.09%,Al_2O_3 0.19%,Fe_2O_3 0.16%,总量99.97%。属等轴晶系,空间群,T^5-I2_13,晶胞参数a=10.55,Z=16。Avicennite, a mineral species of thallium which is very rare and dispersed in the crust, is discovered in natural heavy sands from Sila Ditch, Luolong County, Tibet. Its associated minerals are galena, cerussite, pyrite, scheelite, zircon, anatase, hematite, ilmenite, barite, sphene, etc. 17 different spots on 3 mineral grains have been chosen to do quantitative electron probe analysis, giving Tl_2O_3 98.53%, SiO_2 1.09%, Al_2O_3 0.19%, Fe_2O_3 0.16%, and total 99.97%. X-ray analysis shows that it is of cubic system. Space group T^5-I2_13, α=10.55, Z=16.

关 键 词：褐铊矿 西藏 

分 类 号：P578[天文地球—矿物学]