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.
Arkansas North and Central Americas United States 5626 Aegirine, Calcite, Jones Mill Quarry (Martin Marietta Quarry; Highway 51 Quarry; Mid-State Quarry), Magnet Cove, Hot Spring Co., Arkansas, USA October 5, 2019
Australasia Australia Victoria 0460 Calcite, Natrolite, Analcime, Cairns Bay, Flinders, Victoria September 19, 2019
Australasia Australia Victoria ncat JP402 Chabazite, Phillipsite, Calcite, Old Melbourne Quarries, Victoria September 23, 2019
Australasia Australia South Australia ncat MAR03 Hausmannite, Calcite, Iron Monarch open cut, Iron Knob, Middleback Range, Eyre Peninsula, South Australia March 2, 2024