Beryl-columbite pegmatite from Branná, Hrubý Jesenik Mnts., Northern Moravia
Article PDFBeryl-columbite pegmatite from Branná, Hrubý Jesenik Mnts., Northern Moravia
Granitic pegmatite from Branná represents typical beryl-columbite pegmatite of the Hrubý Jeseník Mts. pegmatite field. Its internal structure, textural-paragenetic units and description of minerals are given.
Columbite-tantalite is a typical accessory mineral besides garnet and beryl. Dominant ferrocolumbite is enriched in Ti and Fe3+ relative to columbite-tantalite from other localities of this region.
Milan Novák, Radek Škoda, Boris Urbánek, Institute of Geological Sciences, Masaryk University, Kotlářská 2, 61137 Brno, Czech Republic, e-mail: mnovak@sci.muni.cz, rskoda@sci.muni.cz, parisu@post.cz
Miroslav Nepejchal, Žižkova 8, 787 01 Šumperk, Czech Republic