Illinois North and Central Americas United States ncat JP928, Marcasite, Mount Carroll Quarry, Mount Carroll, Carroll Co., Illinois, USA September 23, 2019
Australasia Australia New South Wales 5173 Marcasite, Dolomite, Great Cobar Mine, Cobar, New South Wales September 29, 2019
Australasia Australia Tasmania 1730 Marcasite, Fluorite, Mt Bischoff, Waratah, Tasmania September 22, 2019
