4655 Dolomite, Lake Arthur, Chaves Co., New Mexico, USA October 5, 2019 Steve New Mexico North and Central Americas United States Single crystal, no matrix. Ex University of Arizona Mineral Museum. Donor Carl Richardson.
Africa Namibia 4771 Zincian Dolomite, Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia October 5, 2019
Canada North and Central Americas ncat JP0518 Dolomite, Calcite, Marcasite, Barite, Lincoln Quarry (Beamsville Quarry), Clinton Township, Lincoln Co., Ontario, Canada October 11, 2019
Australasia Australia Tasmania 3877 Siderite, Dolomite, Pyrite, Great South Comet Mine, Dundas, Tasmania April 5, 2021
Asia China 0330 Helvite, Dolomite, Calcite, Chamosite, Huanggang (Huanggangliang) Fe-Sn deposit, Hexigten Banner (Keshiketeng Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China September 19, 2019
