Mineralogical and geochemical investigation of micas from the Góry Sowie Mts pegmatites

Micas from pegmatites of the Góry Sowie Mts were characterized using: microscopic observations,X-ray diffractometry, IR-spectroscopy and chemical analyses. The main stress of this study was puton concentration of main and trace elements in these minerals. Micas are very sensitive indicators ofpetrogenetic processes. A depletion in F, Rb, Cs, Li, Sn and REE as well as an enrichment in Ba show thehigh-temperature, post-magmatic crystallization of these minerals. The biotites are enriched in Cr what canconfirm metamorphic and metasomatic genesis of the pegmatites.