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 ncat JP0518 Dolomite, Calcite, Marcasite, Barite, Lincoln Quarry (Beamsville Quarry), Clinton Township, Lincoln Co., Ontario, Canada October 11, 2019
New Jersey North and Central Americas United States 4553 Marcasite, Franklin, New Jersey, USA October 5, 2019
Canada North and Central Americas ncat JP1257 Dawsonite, Fluorite, Marcasite, Francon quarry, Montreal, Quebec, Canada October 11, 2019
