ncat JP804, Copper, Calcite, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA September 23, 2019 Steve Michigan North and Central Americas United States
United Kingdom Wales 4135 Strontianite, Calcite, Penarth Beach, Cardiff, Glamorgan, Wales October 4, 2019
Michigan North and Central Americas United States ncat JP895, Copper, Isle Royale Mines, Houghton, Houghton Co., Michigan, USA September 23, 2019
Australasia Australia Tasmania 1841 Quartz, Sphalerite, Calcite(?), Chalcopyrite, Hellyer Mine, Tasmania September 22, 2019
