GENETICKÉ ASPEKTY FLUORITOVÉ MINERALIZACE U RAKŠIC V BRNĚNSKÉM MASIVU

Hydrothermal fluorite mineralization is located within hydrothermally altered pegmatites near Rakšice (Brno massif). Fluorite prevails, quartz and mainly barite and calcite are minor components of the mineralization. Fluorite has been studied by the microthermometric techniques. Temperature of homogenization (TH) of primary and primary-secondary fluid inclusions ranges between 106° and 142°C. Salinity of traped aquous fluids is low between 0.0 and 3.7wt% NaCl eq. Formation conditions are discussed with other fluorite occurrences in the Bohemian Massif. Genetic aspects of the studied fluorite mineralization are compared with Tertiary fluorite mineralizations near Teplice and Jílové u Děčína