我国主要白云母的矿物学特征研究MINERALOGICAL CHARACTERISTICS OF MAIN MUSCOVITES IN CHINA
宋功保,彭同江,刘福生,牟江,万朴
摘要(Abstract):
利用X射线荧光光谱分析(XRF)、常规化学分析、X射线光电子能谱分析(XPS)和粉晶X射线衍射分析(XRD)等手段对我国主要白云母进行了系统的矿物学研究,并与印度白云母进行了详细的对比分析,探讨了我国白云母与印度白云母在表面化学组成和化学态、体相化学成分、晶体结构方面的差异。研究发现:印度白云母表面K更多地表现为缺失留下空位,表面O严重缺失、不足,四面体层中Si有更多的暴露,表面化学键的不饱和程度高于我国白云母,表现出更高的表面活性。我国主要白云母产地的白云母为2M1型白云母,晶胞参数a、b值随结构中铁和镁离子含量的增加而增大。
关键词(KeyWords): 白云母;表面化学组成和化学态;体相化学成分;晶体结构;晶胞参数
基金项目(Foundation): 国家自然科学基金项目(40102006);; 四川省教育厅重点项目(2003)
作者(Author): 宋功保,彭同江,刘福生,牟江,万朴
DOI: 10.16461/j.cnki.1000-4734.2005.02.006
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