Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
There are no ages for
Hollandite
at
Marble Quarry (Bürgergilt Quarry; Bürgergilde Quarry), Olsa, Friesach, Friesach - Hüttenberg Area, Carinthia, Austria