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我们发现的等轴自然硅产于安徽贵池的天然河流重砂中,共生矿物有锡石、锆石、磁铁矿、金红石、(?)石、四方硅铁矿、角闪石和辉石等,自然硅与四方硅铁矿呈连生体。自然硅为灰黑色,金属光泽,不透明,颗粒大小0.074—0.015mm,显微硬度1018.9kg/mm~2,密度2.32g/cm~3六个不同颗粒自然硅电子探针分析结果:Si 99.11,Fe 0.138,Al 0.034,Sn 0.16。最强的衍射线为3.12(10,111),1.91(8,220),1.635(8,311),1.105(7,422)。晶胞参数α=5.430A,V=160.103A~3,Z=8.
We found that equiaxed natural silicon is produced in the natural river heavy sand in Guichi, Anhui. The symbiotic minerals include cassiterite, zircon, magnetite, rutile, (?) Stone, tetragonite, amphibole and pyroxene , Natural silicon and tetragonal ferrosilicon was born with. Natural silicon gray-black, metallic luster, opaque, particle size 0.074-0.015mm, microhardness 1018.9kg / mm ~ 2, density 2.32g / cm ~ 3 Six different particles of natural silicon electronic probe analysis results: Si 99.11, Fe 0.138, Al 0.034, Sn 0.16. The strongest diffraction lines were 3.12 (10,111), 1.91 (8,220), 1.635 (8,311), 1.105 (7,422). Cell parameters α = 5.430A, V = 160.103A ~ 3, Z = 8.