0646 STRONTIANITE, CALCITE, Winfield Quarry, Winfield, Union County, Pennsylvania, U.S.A. September 28, 2019 Steve North & Central Americas Pennsylvania United States Source C.Kovac, 1985
Arizona North & Central Americas United States 2276 BROMARGYRITE, Shattuck Shaft, Bisbee, Cochise County, Arizona, U.S.A. September 28, 2019
North & Central Americas South Dakota United States 4636 GLAUCONITE, Brownsville Station, Lawrence County, South Dakota, U.S.A. September 28, 2019
California North & Central Americas United States 0013 MERCURY, Socrates Mine, Middletown, Sonoma County, California, U.S.A. September 28, 2019
Africa South Africa 2103 OLMIITE, N’Chwaning II Mine, Kuruman, Kalahari Mn Field, Northern Cape Province, South Africa September 28, 2019