1916 Calcite, Sphalerite, Frazers Grove Mine, Rookhope, Weardale, England September 22, 2019 Steve Co. Durham England United Kingdom Click for full sized imageā¦
North and Central Americas United States Wisconsin 4004 Sphalerite, Hackville Quarry, Outagamie Co., Wisconsin, USA October 4, 2019
Australasia Australia South Australia 20085 Calcite, Pyrite, Olympic Dam Mine, Roxby Downs, Stuart Shelf, South Australia September 18, 2022