3538 IXIOLITE, QUARTZ, Helen Beryl Mine, Fourmile, Custer County, South Dakota, U.S.A. September 28, 2019 Steve North & Central Americas South Dakota United States Source R.Coulsell, 1999
Australasia Australia Tasmania 3266 HUBNERITE, QUARTZ, Aberfoyle Mine, Rossarden, Tasmania, Australia September 28, 2019
Australasia Australia Western Australia 1119 VARISCITE, Milgun Variscite Mine, Milgun Station, Meekatharra, West. Aust., Australia September 28, 2019
Australasia New Zealand 4717 TRIDYMITE, PHLOGOPITE, Tauhera Station, Taupo, North Island, New Zealand September 28, 2019
California North & Central Americas United States 3796 COALINGITE, Santa Rita Mine, New Idria District, San Benito County, California, U.S.A. September 28, 2019