Allanite and its alteration products from pegmatite and skarn near Rešice, Western Moravia, Czech Republic
Article PDFAllanite and its alteration products from pegmatite and skarn near Rešice, Western Moravia, Czech Republic
Allanite-(Ce) occurs in pyroxene (± garnet; plagioclase) skarn and in pegmatite dykes cutting regionally metamorphosed iron skarn body near Rešice. The results of microscopic study and microprobe analyses of allanite and its alteration products (parisite, thorogummite, Th-uraninite) are presented. The chemical compositions of allanite from skarn and pegmatite (allanite I and allanite II) are different, but predominate variations due to metamictization and alteration.
Jan Filip, Petr Sulovský, Department of Mineralogy, Petrology and Geochemistry, Masaryk University, Kotlářská 2,611 37 Brno, Czech Republic, e-mail: filip@sci.muni.cz, sulovsky@sci.muni.cz
Stanislav Houzar, Department of Mineralogy and Petrography, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic, e-mail: shouzar@mzm.cz