陕西驾鹿金矿床发现40种含氧金矿物——物性、X射线衍射及晶体结构初步分析

40 Kinds of Oxygen bearing Gold Minerals Discovered in Jialu Gold Mine, Shaanxi Province ——A Preliminary Analysis on Their Properties, X ray Powder Diffraction and Crystal Structure

指出驾鹿金矿床发现的４０种含氧金矿物呈不同色调的褐、紫、黑等色，多为不规则粒状微细晶集合体，粒径在０．０１ｍｍ～０．５ｍｍ之间；条痕紫、黑色，半金属光泽，不透明；反射多色性显著；摩氏硬度为２～３。Ｘ射线衍射分析表明，大部分的晶体结构可能是由Ａｕ，Ａｇ，Ｃｕ，Ｆｅ或Ｐｂ等金属互化物组成的假立方晶格与一个由β－ＴｅＯ２（可能包括ＰｂＯ或ＣａＯ）组成的斜方晶格的混晶，但不排除它们是含金氧化物的可能性；还有些可能是玻璃质或纳米级矿物，少部分则呈现了准晶态物质的特征。

The 40 kinds of oxygen bearing gold minerals discovered in Jialu gold mine show brown, purple and black in different tones. They often appear as irregularly fine crystalline grained aggregates ranging from 0.01 mm to 0.50 mm in diameter. They show a purplish black streak and a submetallic luster, with opaque and apparent pleochroism. The HM is 2～3. A analysis from X ray powder diffraction indicates that most of the minerals are mix crystal composed of Au, Ag, Cu, Fe or Pb with pseudocubic and a β TeO 2 (probably also including PbO or CaO) with orthorhombic, but possibly are gold bearing oxides also, and some of vitreous or millimicronic minerals, and that a few are quasicrystal.