ncat JP928, Marcasite, Mount Carroll Quarry, Mount Carroll, Carroll Co., Illinois, USA September 23, 2019 Steve Illinois North and Central Americas United States
Illinois North and Central Americas United States 20038 Calcite, Pyrite, Marcasite, Conco Mine, North Aurora, Kane Co., Illinois, USA October 27, 2019
Missouri North and Central Americas United States 1275 Marcasite, Miliken Mine, Viburnum Trend, Reynolds Co, Missouri, USA September 22, 2019
Australasia Australia Tasmania 3091 Marcasite, Allens Workings, Mt Bischoff, Waratah, Tasmania October 3, 2019
