1859 Cumengeite, Boleite, Amelia Mine, Santa Rosalia (El Boleo), Boleo District, Mun. de Mulege, Baja California Sur (BC Sur), Mexico September 22, 2019 Steve Mexico North and Central Americas Six crystals/clusters, including a star formed by cumengite crystals epitaxially overgrown on boleite.
Australasia Australia South Australia 7171 JL3982 Cumengeite, Mount Malvern Mine, Clarendon, South Mt Lofty Ranges (Adelaide Hills), Mt Lofty Ranges, South Australia September 23, 2019
Cornwall England United Kingdom 4462 Cumengeite, Penpol Lead Smelter, Point, Penpol, Cornwall, England October 5, 2019
Cornwall England United Kingdom ncat JP3201 Cumengeite, Paralaurionite, The Gannel Smelter slag locality, Crantock, Cornwall, England, UK October 8, 2019
