1690 Montgomeryite, Santa Maria de Montcada, Barcelona, Catalonia, Spain September 22, 2019 Steve Europe Spain
Europe Spain 2051 Montgomeryite, Crandallite, Montcada, Barcelona, Catalonia, Spain September 22, 2019
Australasia Australia Western Australia 3682 Foggite, Montgomeryite, Variscite, Near Milgun Station, Western Australia October 27, 2019
Australasia Australia Victoria 0926 Parwanite, Taranakite, Montgomeryite, Parwan Cave, near Bacchus Marsh, Victoria September 20, 2019
North and Central Americas South Dakota Type Locality United States 7372 JL3695 Tiptopite, Roscherite, Montgomeryite, Tip Top Mine (Tip Top pegmatite), Fourmile, Custer Mining District, Custer Co., South Dakota, USA December 28, 2020
