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.
Cornwall England United Kingdom ncat JP2319 Cumengeite, Cuddrabridge Mine (Guddrabridge Mine; Padstow Consols; Trevone Consols; Wheal Galway), Gunver Head, Padstow, Cornwall, England, UK October 8, 2019
Australasia Australia New South Wales 7464 JL0818 Boleite, Daydream Mine, Apollyon Valley, New South Wales July 26, 2021
Mexico North and Central Americas 4603 Boleite, Santa Rosalia (El Boleo), Boleo District, Mun. de Mulege, Baja California Sur (BC Sur), Mexico October 5, 2019
Cornwall England United Kingdom ncat JP2285 Cumengeite, Phosgenite, The Gannel Smelter slag locality, Crantock, Cornwall, England, UK October 8, 2019
