ncat JP654, Calcite, Oskaloosa, Mahaska Co., Iowa, USA September 23, 2019 Steve Iowa North and Central Americas United States
Michigan North and Central Americas United States ncat JP804, Copper, Calcite, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA September 23, 2019
Australasia Australia New South Wales ncat NOVM Calcite, Railway Quarry, Ardglen, New South Wales November 28, 2021
Australasia Australia Queensland 0441 Calcite, Quartz, Pyrite, Biggenden, Queensland September 19, 2019
United Kingdom Wales 5451 Anatase, Synchysite-(Ce), Calcite, Quartz, Dolyhir Quarry, Old Radnor, Presteigne, Powys, Wales, UK October 2, 2019