| 我国首次发现原生—自然硅 |
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| 引用本文： | 江饶通,陈玫.我国首次发现原生—自然硅[J].矿物学报,1993,13(4):335-340. |
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| 作者姓名： | 江饶通 陈玫 |
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| 作者单位： | 化学工业部化学矿产地质研究院，化学工业部化学矿产地质研究院，化工部地勘公司福建化工地质队，化工部地勘公司福建化工地质队，化工部地勘公司福建化工地质队，化工部地勘公司福建化工地质队 涿州 072754，涿州 072754，福州市，福州市，福州市，福州市 |
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| 摘 要： | 本文对自然硅进行了矿相学，矿物学研究，该矿物产于福建某地矽卡岩型硫，多金属矿床中，自然硅呈亮灰银白色、强金属光泽。性脆。镜下呈浑圆粒状、乳滴状，均质。实测比重ｄ＝２．３６８。硬度ＨＭ＝６．７６。反射率Ｒ：４７０ｎｍ３７０８；５４６ｎｍ３１．２７；６５０ｎｍ２９．９６。经扫描电镜能谱分析、电子探针分析，Ｓｉ９９．８７％～９９．９４％。含少许Ａｌ，Ｃａ，Ｆｅ机械混入物，Ｘ射线粉晶分析，主要Ｘ射线粉晶谱
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| 关 键 词： | 自然硅 矽卡岩 福建 矿相学 |
FIRST DISCOVERY OF PRIMARY NATURAL SILICON IN CHINA |
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| Zhou Zaihuang,Liu Xiuqing,Jiang Raotong,Chen Mei,Wu Yuan,Lu Lin Geological Institute for Chemical Minerals,Zhuozhou, Fujian Geological Team for Chemical Minerals.FIRST DISCOVERY OF PRIMARY NATURAL SILICON IN CHINA[J].Acta Mineralogica Sinica,1993,13(4):335-340. |
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| Authors: | Zhou Zaihuang Liu Xiuqing Jiang Raotong Chen Mei Wu Yuan Lu Lin Geological Institute for Chemical Minerals Zhuozhou Fujian Geological Team for Chemical Minerals |
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| Institution: | Zhou Zaihuang,Liu Xiuqing,Jiang Raotong,Chen Mei,Wu Yuan,Lu Lin Geological Institute for Chemical Minerals,Zhuozhou,072754 Fujian Geological Team for Chemical Minerals |
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| Abstract: | Natural silicon, dealt with in the present paper with respect to its ore microscopy andpetrology, occurs in some sulfur-rich multi-metallic deposits of skarn type. The specimen oftenshows silver-white colour, strong metallic luster, and brittleness, with a specific gravity of 2.368and a hardness of 6.76. It is homogeneous, perfectly round and milk-droplike in appearance un-der reflecting microscope. The reflectivities R are 470nm 37.08, 546nm 33. 44, 589nm 31. 27 and650nm 29.96. A combination of SEM and EPA anglyses revealed that Si accounts for 99.87%-99.94% of its composition while the physical mixture of Al, Ca, and Fe is seldom found. The pow-der diffraction data obtained by X-ray diffraction analysis include powder patterns 3.155(100),1.927(93), 1. 642(60), 1. 361(17), and 1. 248(25)], thus belonging to the isometric system. Unit cellparameter: a = 0.547nm, Z= 8. Space group: O_h~7-Fd3m. A comparison of the X-ray diffraction analysis data on the silicon in question with those ofman-made single-crystal silicon, confirmed no compositional and textural differences betweenthese two minerals. That is, the former is reasonably named natural silicon. Its discovery, to a certain extent, is of economic and geological significance. |
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| Keywords: | natural silicon skarn Fujian |
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