未命名硫化物矿物──CuPbS_2  

AN UNNAMED SULFIDE MINERAL-CuPbS_2

作　　者：杨时惠[1] 林月英[2] 王益 

机构地区：[1]地质矿产部成都地质矿产研究所,成都610081 [2]地质矿产部矿床地质研究所,北京100037

出　　处：《矿物学报》1996年第3期304-306,T001,共4页Acta Mineralogica Sinica

摘　　要：未命名硫化物矿物是一个少见矿物，发现于四川呷村银多金属矿床。共生矿物有黄铁矿、闪锌矿、方铅矿、黝铜矿、黄铜矿、含汞银金矿、自然金、辉银矿、硫钒铜矿、含锗锡硫钒铜矿、斜硫锑铅矿等。该矿物呈黑色，金属光泽，不透明，显微硬度为142．4～1563kg／mm2，反射色为灰白色带棕色色调，非均质性。化学成分（Wt％）Ph61．04；CW19．22；S18.73；Ag2.14；Fe0．20（平均），矿物的化学式为：（Cu1.10Ag0.08）1.18Pb1．04S2。X射线粉晶分析，主要强线为：3．9295（71），2．7997（100），2．9997（40），1．9200（45），1．900（40），1．7600（59）。The unnamed sulfide mineral described in this paper is a rare mineral. It was found in the Jiacun Ag polymetallic ore deposit, Sichuan Province. The coexisting minerals include pyrite,sphalerite, galena, tetrahedrite, chalcopyrite, Hg-bearing electrum, native gold, argentite, sulvanite, Ge-Sn sulvanite, plagionite, etc. The mineral is black in color, has a metallic luster, is anisotropic and non-transparent with microhardness ranging from 142. 4 to 156. 3kg/mm2. Its reflection color is grey-white with a brown tint. Its chemical analysis gave (wt%): Pb 61. 04, Cu19. 22, S 18. 73, Ag 2. 14, and Fe 0. 20 (on average) with a chemical formula of (Cu1.10Ag0.08)1. 18Pb1.04S2. The strongest lines in the X-ray diffraction pattern are: 3. 929 5(71 ), 2. 799 7(100), 2.999 7(40), 1. 9200(45), 1. 900(40), and 1. 7600(59).

关 键 词：硫化物矿物 银 多金属矿床 CuPbS2 

分 类 号：P578.2[天文地球—矿物学]