西藏东部钙铬榴石的谱学研究

Research on Spectroscopy of Uvarovite from Eastern Tibet

摘要: 运用电子探针、X射线衍射仪、透射电镜能谱仪、分光光度计、红外光谱仪、激光拉曼光谱仪等对西藏东部钙铬榴石的谱学特征进行了较为详尽的研究。对钙铬榴石的颜色指数进行了定量分析,说明其颜色浓艳是饱和度较高所致。发现了钙铬榴石中有石英、方解石杂质和锆石包裹体的存在,说明西藏东部钙铬榴石与石英、方解石的共生关系。

Abstract: The spectrum characteristics of uvarovite from the eastern Tibet, China, are investigated systematically using the EDS, XRD, TEM, UV-VI, IR and LRM. The reason of satuated green of the uvarovite is its higher colour saturation by analyzing its colour index. It indicates that uvarovite from the eastern Tibet is coexisted with quartz and calcite for discovering quartz, calcite and zircon in the uvarovite.