本文以江西414矿为例,通过对本区及其他矿区近百个云母样品分析资料的研究,论述了云母的成份变化、空间和时间上的分布和演化,及与矿化和交代蚀变的关系。指出:除了云母中锂、氟的含量可做矿化标志外,也可用云母中的Al_(V1)~(+3)作为判别矿化类型的标志。 Based on the analysis of nearly one hundred samples of mica in this area and other mines, taking Jiangxi No.414 as an example, the paper discusses the compositional variation, spatial and temporal distribution and evolution of micas and their relationship with mineralization and metasomatic alteration . It is pointed out that Al_ (V1) ~ (+3) in mica can also be used as a sign of mineralization type in addition to the content of lithium and fluorine in mica.