8028 Boltwoodite, Calcite, Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia October 5, 2019 Steve Africa Namibia ex Bernie and Margaret Day Collection
Europe Russia 5236 Calcite, Quartz, Sphalerite, Nikolaevskiy Mine, Dal’negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia September 29, 2019
North and Central Americas Tennessee United States ncat RAM4 1295 Calcite, Pyrite, Gray Quarry, Gray, Sullivan Co., Tennessee, USA December 31, 2023
Connecticut North and Central Americas United States 1627 Datolite, Calcite, Roncari Quarry, East Glastonbury, Connecticut, USA September 22, 2019
Africa South Africa 8073 M1819 Iowaite, Chondrodite, Calcite, Magnetite, Palabora mine, Loolekop, Phalaborwa, Limpopo Province, South Africa March 31, 2024