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 Victoria 1424 Calcite (Eye Agate), Kitty Millers Bay, Phillip Island, Victoria September 22, 2019
Australasia Australia Victoria 2440 Calcite, Portland Harbour Trust Quarry, Cape Grant, Portland, Victoria September 22, 2019
Australasia Australia Tasmania 1816 Calcite, Chalcopyrite, Henty Gold Mine, Queenstown, Tasmania December 14, 2021
Europe Germany 10013 Calcite, Millerite, Hematite, St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany October 5, 2019