赣南矿(α-BiF_(3))——一种含氟、铋的新矿物  

Ganahite(α-BiF3) , a new Bumofluoride Mineral from Jiangsi, China

作　　者：成隆才 胡宗绍 潘世伟 黄荣胜 过叔良 Cheng Longzai;Hu Zongshao;Pan Shiwei Huang;Rongsheng;Guo Shuliang

机构地区：[1]江西省赣南地质调查队 [2]江西省地质矿产局中心实验室

出　　处：《岩矿测试》1984年第2期119-123,I0003,I0004,共7页Rock and Mineral Analysis

摘　　要：赣南矿是根据产地命名的。它产于江西省南部(简称赣南)赣县赖坑钨矿区内,为一含氟和铋的矿物。1983年4月12日经国际矿物协会(I.M.A.)新矿物与矿物命名委员以22票赞成、0票反对的表决结果批准为新矿物。矿物标本存放在北京地质矿产部地质博物馆。Gananite reported in this paper is a new bismofluoride mineral found in the tungsten-bearing quartz veins with tungsten minerals from Laikeng, Southern Jiangsi. Associated mineral are: bismuth, bismuthinite, pyrite, wolframite, chalcopyrite and quartz. The mineral is present as aggregates (0.15mm-0. 076mm) of anhedral grains of unequal size, with semi-metallic luster, color is brown to black and greenish black with a dark grey streak, translucent, no cleavage, fracture uneven,brittle.Hv = 135-153kg/mm2.Dcaic.= 8.928g/cm3. Under reflected light, isotro-pic with grey reflection color in air and grey internal reflections. Reflectance values (in the air and oil). 407nm (11.08) (4.21), 435nm(12.32) (10.07), 546nm (12.75)(11.08) , 591nm (12.92) (12.63), 621nm(12.96) (11.37) ,647nm (13.27) (11.49). Single crystal studies could not be carried out because no single crystal has been found. The X-ray powder diffraction data are essentially identical to the data for synthetic a-BiF3 given on J. C. P. D. S. card 11-10 and are indexed on a cubic cell with a= 5.825(1) A, z=4, The space group of synthetic material is p43m. The strongest lines in the pattern are. 3.37(10) (111), 2.91(7) (200), 2.059(9)(220), 1.756(8)(811), 1.682(5)(222), 1.334(5)(331), 1.188(5)(422). The chemical constituents of Gananite are Bi=78.98% and F = 20.40%, total 99.38%. These yield the chemical formula BiF3, The mineral is named after its locality. Type material is deposited in Geological Museum of China, Beijing.

关 键 词：赣南矿 地质博物馆 地质矿产部 矿物命名 江西省南部 表决结果 

分 类 号：P61[天文地球—矿床学]