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 Tasmania 3481 Cumengeite, Penguin Silver Mine, Penguin, Tasmania October 3, 2019
Australasia Australia New South Wales 7464 JL0818 Boleite, Daydream Mine, Apollyon Valley, New South Wales July 26, 2021
Australasia Australia South Australia ncat VH551 Cumengeite, Mount Malvern Mine, Chandlers Hill, South Mt Lofty Ranges (Adelaide Hills), South Australia September 6, 2022
Cornwall England United Kingdom ncat JP3201 Cumengeite, Paralaurionite, The Gannel Smelter slag locality, Crantock, Cornwall, England, UK October 8, 2019
