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一、前言云母作为造岩矿物广泛分布,对一些成矿和稀少元素起富集作用,这些元素作为云母晶格的组成部分,或形成独立矿物包在云母中,或富集生长于其附近。云母的独立种到目前已超过40个,其中30个已作过结构分
I. INTRODUCTION Mica is widely distributed as a rock-forming mineral and plays a role of enrichment for some metallogenic and rare elements. These elements form part of the mica lattice or form independent minerals in the mica or enriched in its vicinity. Mica independent species to the present has more than 40, of which 30 have made structural points