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Cumengeite
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| Cumengeite Formula: Pb21 Cu20 Cl42 (O40 H40) Name: Cumengeite Unit cell: 15.065 15.065 24.436 90.0 90.0 90.0 , V=5545.85 Space group: I4/MMM (139) |
Hawthorne F C , Groat L A , Mineralogical Magazine , 50 (1986) p.157-162, The crystal structure and chemical composition of cumengeite, Locality: Boleo, Baja California, Mexico
