30061 Groutite, Calcite, Wessels Mine, Hotazel, Kalahari manganese field, Northern Cape, South Africa April 21, 2020 Steve Africa South Africa Black groutite on an unknown brown stalactitic mineral with calcite that fluoresces red. Ex Barry Johnson Collection.
Austria Europe ncat JP1185 Clinoptilolite, Calcite, Loja, Persenbeug-Gottsdorf, Waldviertel, Lower Austria, Austria September 23, 2019
Canada North and Central Americas 30068 Barite, Dolomite, Pyrite, Calcite, Newfoundland Zinc Mine, Daniel’s Harbor, Newfoundland, Canada April 21, 2020
Australasia Australia New South Wales ncat VHD4, Calcite, Pyrite, Barite, Broken Hill, New South Wales November 17, 2019