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Birnessite from
Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania


Classification
Species:Birnessite
Formula:(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Birnessite data
Locality Data:Click here to view Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania
Data Identifiers
Mindat Occurrence Record ID:1287926
Long-form Identifier:1:3:1287926:3
GUID (UUID V4):0
References
Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.
 
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