摘要
含硒黑辰砂产于寒武系含碳泥质显微晶粒白云岩中。赋存在石英脉中及硅化较强的地段。矿石以含硒黑辰砂为主,其他共生矿物有黄铁矿、硫汞锌矿、辰矿、黝铜矿。含硒黑辰砂属等轴晶系。呈深灰色。条痕黑色。比重7.96。反射色为白色带蓝灰。反射率为28.5(480),27.5(540),26.7(580),26.2(640)％。化学成分为Hg=84.04,Se=4.23,S=11.02％。X射线粉晶衍射主要数据为3.436(100),2.977(37),2.106(57),1.997(37)。晶胞参数α=0.
The onofrite occurred in the micro-crystalline carbon-muddy dolomite of the Cambrian system. It is commonly found in quartz veins and strongly silicified dolomite as a low-temperature mineral. Merkurglanz is dominant in the ore. The associated minerals include pyrite, polhemusite, cinnabar and tetrahedrite.The onofrite is of isometric system, dark-grey in colour, and black in streak, with a specific gravity=7.96. Reflective colour is white with a bluishgrey tint; reflectance values are estimated to be 28.5(480), 27.2(540), 26.7(580) and 26.2(640)%; chemical analysis gave Hg=84.04, Se=4.23 and S=11.02%; X-ray powder diffraction data are 3.436(100), 2.977(37), 2.106(57), 1.997(37); and unit-cell parameter is α=0.5899nm.
出处
《矿物学报》
CAS
CSCD
北大核心
1991年第3期274-277,共4页
Acta Mineralogica Sinica
