Quartz from Kremze, Český Krumlov District, South Bohemian Region, Czech Republic
Czech Republic | |
| Wannhoff, Iris, Ferrero, Silvio, Borghini, Alessia, Darling, Robert, O’Brien, Patrick J. (2022) First evidence of dmisteinbergite (CaAl2Si2O8 polymorph) in high-grade metamorphic rocks. American Mineralogist, 107 (12) 2315-2319 doi:10.2138/am-2022-8505 |
| [var. Chalcedony] |
Bohouškovice opal occurrences, Bohouškovice, Kremze, Český Krumlov District, South Bohemian Region, Czech Republic