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.
Australasia Australia Tasmania 3846 Calcite, Analcime, Gmelinite, Weldborough, Tasmania October 3, 2019
Australasia Australia Victoria 40012 RH1020 Calcite, Ilmenite, Colac Quarry, Ondit, Colac Otway Shire, Victoria January 15, 2021
Australasia Australia Victoria 1424 Calcite (Eye Agate), Kitty Millers Bay, Phillip Island, Victoria September 22, 2019
Co. Antrim Northern Ireland United Kingdom 0443 Calcite, Magheramorne Quarry, near Glenarm, Co. Antrim, Northern Ireland September 19, 2019