福建南平花岗伟晶岩中绿柱石的矿物学研究

福建南平花岗伟晶岩中铍矿物种类繁多，其中最主要的是绿柱石，它主要集中产出在稀有金属构成矿化的白云母－钠长石－锂辉石伟晶岩中，其中，以石英－叠层白云母结构带内最多。在不同类型或同一类型伟晶岩的不同结构带中，绿柱石的物理性质和化学成分均有一定差异，特别是化学成分中稀有碱金属的含量变化，不仅影响了它的物理性质、晶体结构、红外光谱、差热分析等一系列特征，而且和伟晶岩的稀有金属矿化强度也有密切的联系。因此，绿柱石是花岗伟晶岩中很有意义的一个标型矿物。

Mineralogical Study of Beryl in the Granitic Pegmatite from Nanping, Fujian Province

Beryl, as a main beryllium-bearing mineral, is centralized and dispread in the rare metal mineralized muscovite albite-spodumene pegmatite, especially in the quartz-laminated muscovite structural belt. In the different pegmatite or the different structural belt of the same pegmatite, the physical and chemical characteristics of beryl are different. The content change of rare metal elements impacts on the physical, crystal structural, infrared spectrum and DTA characteristics of beryl, and has a close relation with the intensity of rare metal mineralization of pegmatite. It is futher suggested that beryl is a significant typomorphic mineral in the granitic pegmatite.