一种未定名硫化物矿物—(Zn,Cu,Fe)S  

AN UNNAMED SULFIDE MINERAL——(Zn, Cu, Fe) S

作　　者：雷蕴芬[1] 林月英[1] 张德全[1] 余静[1] 

机构地区：[1]中国地质科学院矿床地质研究所,北京100037

出　　处：《矿物学报》1991年第1期78-82,T002,共6页Acta Mineralogica Sinica

摘　　要：未定名硫化物矿物是一个稀少矿物,它发现于内蒙古铅锌矿的矽卡岩矿床中。共生矿物有黄铜矿、闪锌矿、方铅矿。它呈黑色,金属光泽,不透明,硬度为165—214kg/mm^2。反射色为灰色微带蓝色,弱非均质性,深蓝—黄褐色。化学成分(wt％):S 32.32、Cu 6.46、Fe 6.56、Zn 54.29、Pb 0.31、Cd 0.20、Co 0.03(平均),分子式(Zn_(0.84) Fe_(0.11) Cu_(0.09)_(1.04) S。X射线分析数据与闪锌矿相同,d值和晶胞参数比闪锌矿(含铁)的小,晶胞参数比人工合成闪锌矿的大。粉晶主要强线为3.108(100)、1.906(50)、1.628(30)、1.240(20)、1.103(20)。The unnamed sulfide mineral (Zn, Cu, Fe) S is of rare occurrence, discovered in a lead-zinc skarn ore deposit, Nei Mongol. The associated minerals include chalcopyrite, sphalerite and galena.It is black, metallic in luster and opaque with hardness VHN=165-214 kg/mm^2. It is grey with a faint blue tint,weakly anisotropic, and dark blue-yellow brown.Electron microprobe analysis gave: S 32.32, Cu 6.46, Fe 6.56, Zn 54.29, Pb 0.31, Cd 0.2 and Co 0.03 (on average), with an empirical formula of (Zn_(0.84)Fe_(0.11)Cu_(0.09))_(1.04) S and an ideal formula of (Zn, Cu, Fe)S.X-ray powder diffraction analysis of the mineral and sphalerite(Fe-bearing) yielded smaller d value and unit-cell parameters than those of sphalerite, but larger ones than those of synthetic sphalerite. The strongest lines are 3,108 (100), 1.906(50), 1.628(30), 1.240(20), and 1.103(20).

关 键 词：硫化物矿物 铅锌矽卡岩矿床 内蒙古 晶胞参数 共生矿物 闪锌矿 

分 类 号：P578.2[天文地球—矿物学]