5070 Duftite, Calcite, Tsumeb Mine, Tsumeb, Otjikoto, Namibia September 29, 2019 Steve Africa Namibia Possibly dolomite? Click for full sized image…
Asia China 5076 Calcite, Fluorite, Quartz, Xiefang Mine, Ganzhou, Jiangxi Province, China September 29, 2019
Canada North and Central Americas ncat VHD4, Calcite, Highway 7, Madoc, Ontario, Canada November 17, 2019
