Abstrakt: |
Abstract: An assemblage of Al-bearing titanite, ilmenite and magnetite is present in polymetamorphic metabasite environment of the Varied group of the Moldanubian Zone. Titanite is characterized by coupled substitution (Al, Fe3+)+ (F, OH) - Ti + O, with a slight excess of (Al, Fe3+)-F component. Complex reaction rims of titanite around ilmenite occur in some cases. Ilmenites have FeTiO3 amounts usually above 96 mol.%, with some enrichment by MnTiO3 component (max. 8 mol.%). Magnetite has a negligible ulvöspinel component (max. 1 mol.%). |