4387 Polybasite, Husky Mine, Elsa, Yukon, Canada October 5, 2019 Steve Canada North and Central Americas Ray Hill 7/2007
Canada North and Central Americas 4388 Polybasite, Stephanite, Husky Mine, Elsa, Yukon, Canada October 5, 2019
Australasia Australia New South Wales 8010 Pearceite, Polybasite, Browne’s shaft, Junction Mine, Broken Hill, Yancowinna Co., New South Wales October 5, 2019
Mexico North and Central Americas 0179 Acanthite (after Polybasite), Valenciana Mine, Guanajuato, Mexico September 18, 2019
Idaho North and Central Americas United States ncat JL2456 Polybasite, Quartz, De Lamar Mine, Owyhee Co, Idaho, USA October 15, 2019
