1508 Calcite (Var: Cobaltoan), O’Donoghue’s Castle Mine July 17, 2020 James Melville Australasia Australia South Australia Pink Calcite (Var: Cobaltoan) from O’Donoghue Castle Mine, 10km W of Wooltana Homestead, South Australia, Australia. [90x60x15mm] click to view full size image …