0463 Calcite, Mn Oxide, Lilydale Quarry, Lilydale, Victoria November 25, 2018 Steve Australasia Australia Victoria Usually referred to as “pyrolusite”, but exact manganese oxide unknown. Click for full sized image…
Arizona North and Central Americas United States 5223 Calcite, Wulfenite, Rowley Mine, Theba, Maricopa Co., Arizona, USA September 29, 2019
Co. Antrim Northern Ireland United Kingdom 0443 Calcite, Magheramorne Quarry, near Glenarm, Co. Antrim, Northern Ireland September 19, 2019
