20085 Calcite, Pyrite, Olympic Dam Mine, Roxby Downs, Stuart Shelf, South Australia September 18, 2022 Steve Australasia Australia South Australia Fluorescent red calcite and a pyrite ring.
Co. Antrim Northern Ireland United Kingdom 0643 Gmelinite, Calcite, Natrolite, Magheramorne Quarry, near Glenarm, Co. Antrim, Northern Ireland September 20, 2019
North and Central Americas Ohio United States ncat Fluorite, Calcite, Marblehead Quarry, Marblehead, Ohio September 23, 2019
