3091 Marcasite, Allens Workings, Mt Bischoff, Waratah, Tasmania October 3, 2019 Steve Australasia Australia Tasmania May be pyrite
Canada North and Central Americas 8066 Calcite, Fluorite, Marcasite, Barite, Francon quarry, Montreal, Quebec, Canada October 5, 2019
Africa Egypt 5083 Goethite, Marcasite, White Desert, Farafra Oasis, near border with Libya, Egypt September 29, 2019
Missouri North and Central Americas United States 1275 Marcasite, Miliken Mine, Viburnum Trend, Reynolds Co, Missouri, USA September 22, 2019
Canada North and Central Americas 1243 Dawsonite, Fluorite, Strontianite, Marcasite, Francon Quarry, Montreal, Quebec, Canada September 22, 2019
