0182 COVELLITE, Leonard Mine, Butte, Silver Bow County, Montana, U.S.A. September 28, 2019 Steve Montana North & Central Americas United States Source R.Mether, 1982
Czech Republic Europe 3027 HEYROVSKYITE, Hurky u Cista, Velka Chmelistna, Bohemia, Czech Republic September 28, 2019
Africa South Africa 3985 QUARTZ var. Chalcedony, N’Chwaning I Mine, Kuruman, Kalahari Mn Field, Northern Cape Province, South Africa September 28, 2019
