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 JP1686 Cumengeite, Gypsum, The Gannel Smelter slag locality, Crantock, Cornwall, England, UK October 8, 2019
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
Cornwall England United Kingdom 3621 Cumengeite, Padstow Consols, Padstow, Cornwall, England October 3, 2019
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
