【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:Tl₂O₃98.53%,SiO₂ 1.09%,Al₂O₃ 0.19%,Fe₂O₃ 0.16%,总量99.97%。属等轴晶系,空间群,T⁵-I2₁3,晶胞参数a=10.55,Z=16。更多还原

【Abstract】 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 Tl₂O₃ 98.53%, SiO₂ 1.09%, Al₂O₃ 0.19%, Fe₂O₃ 0.16%, and total 99.97%. X-ray analysis shows that it is of cubic system. Space group T⁵-I2₁3, α=10.55, Z=16.更多还原