Strengit s proměnlivým obsahem hliníku v grafitem bohatých horninách moldanubika na lokalitě Štěměchy
Článek v PDFStrengite with the variable Al-content from the graphite-rich moldanubian rocks on the Štěměchy locality
The late fissure mineralization with phosphate minerals was noted in graphitic moldanubian rocks. On the Štěměchy locality is formed by the oldest quartz, strengite, variscite, wavellite and the youngest clay minerals. Variable content of Al (0.0108–0.489 apfu Al) in strengite were also detected. In the phosphate minerals is the strengite component prevalent with a regular content up to 1.5 wt. % V2O5 (0.03 apfu V). The origin of this late mineralization is connected with the weathering of primary feldspars and V-bearing minerals (V-rich muscovite).
Markéta Nohavicová, Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno
Václav Vávra, Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno; Department of Biology, Faculty of Education, Masaryk University, Poříčí 7, 603 00 Brno; CEITEC – Central European Institute of Technology, Masaryk University