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(一)阿拉善地区发现最纯的透辉石西安地质矿产研究所的科技人员李金铭和王来生,最近在阿拉善东部地区超基性岩体中发现了目前世界上已知最纯的透辉石。透辉石是一种硅酸盐矿物,是电瓷和陶瓷工业的优质原料,国外曾经发现过较纯的透辉石。他们这次发现的透辉石呈自形或半自形晶体,无色透明,不等粒短柱体。用先进仪器进行了多种测试,和国外已知较纯的透辉石进行了比较。激光拉曼光谱分析表明,硅氧四面体键结构稳定单一,呈现典型的透辉石拉曼谱。从红外光谱仪测得的数值,比美国“萨德勒”商业透辉石标样还要标准。电子探针和湿法分析结果,其成
(A) the most pure diopside found in the Alashan region Li Jinming and Wang Laisheng, scientists and technicians at Xi’an Institute of Geology and Mineral Resources, recently discovered in the ultrabasic rock mass in the eastern Alxa that the world’s most known translucent stone. Diopside is a silicate mineral, which is a high quality raw material for electric porcelain and ceramic industry. Foreign countries have found relatively pure diopside. The diopside they found this time was self-shaped or semi-self-crystalline, colorless and transparent, unequal grain short cylinder. A variety of tests were carried out using advanced equipment and compared with purely diopside known from abroad. Laser Raman spectroscopy analysis showed that the silicon tetrahedron bond structure is stable and single, showing a typical diopside Raman spectrum. Measured from the infrared spectrometer values, than the United States “Sadler” commercial diopside standard even standard. Electronic probe and wet analysis of the results