和田碧玉的物质组成特征及其地质成因

Characteristics of Material Compositions and Geological Origin of Green Hetian Nephrite

对和田地区的碧玉子料进行了偏光显微镜下观察以及电子探针、X射线粉末衍射、红外光谱分析和化学成分分析,根据其物质组成特征,确定其为超基性岩蚀变而成,属玛纳斯型闪石玉矿床,建议在和田地区加强对此类型玉石原生矿床的寻找。

The characteristics of the material compositions of Ziliao of green Hetian nephrite are studied by using the polarizing microscope, electron microprobe, X-ray powder diffraction, infrared spectrum and chemical composition analysis. The results show that the geological origin of green Hetian nephrite is alteration of ultrabasic rock. It is the same type with Manasi nephrite deposit. The proposal for strengthening to seek the raw deposit of green nephrite in Hetian district is put forward in this paper.