1223 DUFRENITE, Coon Creek Mine, Shady, Polk County, Arkansas, U.S.A. September 28, 2019 Steve Arkansas North & Central Americas United States Source G.Leske, 1982
Brazil South America 2883 MUSCOVITE, Golconda Pegmatite, Golconda District, Governador Valadares, Doce Valley, Minas Gerais, Brazil September 28, 2019
Cumbria England United Kingdom 3315 SPHALERITE, Smallcleugh Mine, Nenthead, North Pennines, Cumbria, England, U.K. September 28, 2019
California North & Central Americas United States 4010 CRISTOBALITE, Coso Hot Springs Deposit, Coso District, Coso Mtns., Inyo County, California, U.S.A. September 28, 2019
Europe Switzerland 3400 LENGENBACHITE, JORDANITE, Lengenbach Quarry, Binn Valley, Wallis, Switzerland September 28, 2019
