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沐川矿——一种新的含水的钼硫化物 总被引:1,自引:0,他引:1
Muchuanite, a new water-bearing molybdenum sulphide mineral, was discovered in aseries of molybdenum-bearing feldspathic quartz-sandstone of the Jurassic system,Sichuan Province, China. Muchuanite is darkly powdery and very finely sealy with specific gravity=5.01(meas.) and 5.10(ealc.),and microhardness=16-35 kg/mm^3.Optically,it is nniaxial(-),Refrative index in sir Rs=26.6-29.5%,Rp=12.3-14.2%,colour index X=0.3114,Y=0.37848,λd=566mμ,Pe=14.4%.The chemical composition of muchuanite is given as follows;Mo 52.88,54.20;S 37.34 36.00;Fe n.d.,2.2;Si n.d.,0.5; H2O^ 6.03,5.95;H2O^- 2.07,.00;total 98.59,99.85.Chemical and electron microprobe analyses gave the following formuls;MoS2,0.5H2O.Muchuanite is trigonal with space group C3^1=P3ml,unitcell parameters α=3.16A,c=43.60A,v=377.09A,z=7,and unit-cell containing 3.5 water molecules.The strongest lines given by X-ray diffraction pattern(d,A,intensity hkl)are 6.013(10,0.0.7);2.677(8.0.0.16);2.257(7,0.0.19);1.567(7,1.1.3);1.523(7,0.0.28);1.096(3,1.1.28);1.021(3,0.0.42).Muchuanite is syngenetic with feldspathic quartz sandstone.The mineral is named after the locality where it was discovered,i.e.Muchuan County in Sichuan Province. 相似文献
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利用五种非金属矿物原料,按照科学的制造工艺,研制成功了高压半渗透隔板仪的核心部件——半渗透陶瓷隔板,广泛用于油气勘探和开发中测定流体分布和孔隙大小。其主要技术指标为:突破压力(过气)1—2兆帕(MPa),过水压力0.001—0.05兆帕,抗拉强度141kg/cm~2,抗压强度1310kg/cm~2,产品合格率达75%以上,其中达到国际先进水平的占32%。 相似文献
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众所周知,金刚石按含氮量分成Ⅰ型和Ⅱ型。Ⅰ型含氮高,氮浓度大于0.01%;Ⅱ型一般不含氮,氮浓度小于0.001%。Ⅰ型中,含顺磁氮的称为Ⅰb型,其余为Ⅰa型。根据红外吸收光谱中7—10微米范围内各吸收峰的出现情况及强度差别,Ⅰa型又分为ⅠaA型和ⅠaB型。Ⅱ型中具有半导体性能的称为Ⅱb型,其余为Ⅱa型。1973年,S.托兰斯基(Tolansky)发表了采用紫外照相法在南非普雷米尔(Premier)等三个矿区中发现了混型金刚石的论文。所谓混型金刚石,指的是同一颗金刚石晶体 相似文献
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