4112 Calcite, Clevedon Beach, Somerset (Avon), England October 4, 2019 Steve England Somerset United Kingdom
Africa South Africa 30111 Kutnohorite, Rhodochrosite, Calcite, N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape, South Africa October 8, 2020
Iowa North and Central Americas United States ncat JP732, Pyrite, Calcite, Pint’s Quarry, Raymond, Black Hawk Co., Iowa, USA September 23, 2019
