8028 Boltwoodite, Calcite, Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia October 5, 2019 Steve Africa Namibia ex Bernie and Margaret Day Collection
Australasia Australia Tasmania 2333 Calcite, Thomsonite-Ca, Addisons Creek, Gads Hill, Upper Mersey Valley, Meander Valley municipality, Tasmania December 14, 2021