摘要
我们发现的四方硅铁矿与自然硅连生体矿物,产于山东莱州湾东部与金矿有关的片麻岩中。该矿物为灰黑色,强金属光泽,不透明矿物。四方硅铁矿的显微硬度:HV=682.3N/um ̄2.自然硅的显微硬度:HV=707.6N/um ̄2。电子探针分析:四方硅铁矿,Si-52.88%,Fe-44.8%,自然硅,Si-97.33%。主要X射线粉晶分析谱线数据:四方硅铁矿,5.15(10),2.382(6),1.855(8),1.78(3),1.343(1),自然硅,3.136(10),1.9103(5),1.638(3)。晶胞参数:四方硅铁矿,Ao=2.2685人,Co=5.137人,Vx=37.034,Z=1,自然硅Ao=5.42,Vx=159.22,Z=8。
The ferdisilicite-silicon interlocking mineral found in Shandong occurs in gneiss. Itsassociated minerals are zircon,apatite,pyrite,hornblende,epidote,magnetite andlimonite etc..The ferdisilicite-silicon interlocking mineral is opaque,grey-black in color and withbright metallic luster.Grain size is 0.063-0.5mm. Microhardness of ferdisilicite is HV=682.3N/um ̄2 and silicon HV = 707.6um ̄2.Reflectance of ferdisilicite :38.9 and silicon:34.49.Electron-probe analysis of ferdisilicite gave :Si-52.88%and Fe-44.89%,and naturalsilicon:Si-97. 33%.X-ray diffraction data of ferdisilicite are:5.15(10),2.382(6),1.899(8),1.78(3),1.713(3)and1.343(1),and natural silicon:3.136(10),1.9103(5) and 1.638(3)。Unit-cell parameters of ferdisilicite are:ao=2. 685,co=5.137,vx=37.034and z=1,and natural silicon:ao=5.42,vx=159.22 and z=8.
出处
《海洋地质与第四纪地质》
CSCD
北大核心
1995年第4期107-112,共6页
Marine Geology & Quaternary Geology