5689 Calcite, Chabazite, Mn Oxide, Aranga Quarry (Stone’s Quarry; Hood Road Quarry), Aranga, Kaipara District, Northland Region, North Island, New Zealand July 12, 2020 Steve Australasia New Zealand Black manganese oxides on curved white calcite crystals and colourless pseudocubic chabazite crystals. Width 11mm. Stack of 100 images.
Australasia Australia Tasmania 2998 Calcite, Merrywood Coal Mine, Royal George, Tasmania October 3, 2019
Europe Germany 10013 Calcite, Millerite, Hematite, St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany October 5, 2019
Australasia Australia New South Wales 0775 Calcite, 6 Level, CSA Mine, Cobar, New South Wales September 20, 2019
Mexico North and Central Americas 30067 Barite, Pyrite, Fluorite, Calcite, Level 4, El Solar Mine, Taxco de Alarcón, Mun. de Taxco, Guerrero, Mexico April 21, 2020