Michigan North and Central Americas United States 4064 Orientite, Calcite, Braunite, Manganese Mine, Copper Harbour, Keneenaw Co., Michigan, USA October 4, 2019
Africa Democratic Republic of Congo (Zaire) 2029 Diamond, Miba Mine, Mbuji-Mayi, Kasaï-Oriental, DR Congo May 12, 2024
