ncat JP928, Marcasite, Mount Carroll Quarry, Mount Carroll, Carroll Co., Illinois, USA September 23, 2019 Steve Illinois North and Central Americas United States
Africa Egypt 5083 Goethite, Marcasite, White Desert, Farafra Oasis, near border with Libya, Egypt September 29, 2019
Canada North and Central Americas 1243 Dawsonite, Fluorite, Strontianite, Marcasite, Francon Quarry, Montreal, Quebec, Canada September 22, 2019
England Lancashire United Kingdom ncat JP2975 Marcasite, Anglezarke Mines, Chorley, Lancashire, England, UK October 8, 2019
Australasia Australia Tasmania 3091 Marcasite, Allens Workings, Mt Bischoff, Waratah, Tasmania October 3, 2019
