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.
Australasia Australia Victoria 5166 Dolomite, Little Bird Rock, Flinders, Victoria September 29, 2019
Kentucky North and Central Americas United States 1078 Fluorite, Dolomite, Irvington Quarry, Breckinridge Co., Kentucky, USA March 23, 2018
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 1256 Cassiterite, Quartz, Arsenopyrite, Actinolite, Dolomite, Actinolite, Renison Bell Mine, North Dundas, West Coast municipality, Tasmania December 29, 2021