Europe Spain 1690 Montgomeryite, Santa Maria de Montcada, Barcelona, Catalonia, Spain September 22, 2019
North and Central Americas South Dakota United States ncat JP345 Montgomeryite, Whitlockite, Fluorapatite, Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA January 27, 2023
Australasia Australia Western Australia 9092 JP2758 Montgomeryite, Hydroxylapatite, Crandallite, Collinsite?, Milgun Variscite Mine (Mount Deverell), Milgun Station, Meekatharra Shire, Western Australia June 12, 2024
Australasia Australia Western Australia 3682 Foggite, Montgomeryite, Variscite, Near Milgun Station, Western Australia October 27, 2019
