Scandium and REE-rich tourmaline from the Kracovice pegmatite (Bohemian Massif) and its breakdown to allanite

• Authors: ČOPJAKOVÁ Renata; ŠKODA Radek; VAŠINOVÁ GALIOVÁ Michaela
• Year of publication: 2013
• Type: Conference abstract
• MU Faculty or unit: Faculty of Science
• Description: Primary black columnar Al-rich schorl to rare fluor-schorl, locally overgrown by brownish green fluor-elbaite from the Kracovice pegmatite (mixed NYF + LCT signature; Moldanubian Zone, Czech Republic) was partly replaced by a mixture of secondary fluor-elbaite plus the assemblage allanite-(Ce) and chamosite. Substitution of ScAl-1 in the octahedral site as well as minor vacancy in the M-sites are supposed in allanite.

Related projects

• Chemical composition and structural order of natural tourmalines - geochemical versus crystal-structural constraints
• CEITEC - Central European Institute of Technology