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Birnessite from
Ferrarias e Castelo Mine, Santa Vitória e Mombeja, Beja, Beja, Portugal


Locality type:Deposit
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 Ferrarias e Castelo Mine, Santa Vitória e Mombeja, Beja, Beja, Portugal
Data Identifiers
Mindat Occurrence Record ID:1676896
Long-form Identifier:1:3:1676896:5
GUID (UUID V4):0
Nearest other occurrences of Birnessite
30.2km (18.8 miles) ⓘHerdade do Ferragudo Mine, Castro Verde e Casével, Castro Verde, Beja, Portugal
34.8km (21.6 miles) ⓘPorteirinhos Mine, Almodôvar e Graça dos Padrões, Almodôvar, Beja, Portugal
36.4km (22.6 miles) ⓘNeves-Corvo Mine, Santa Bárbara de Padrões, Castro Verde, Beja, Portugal
References
Oliveira, Daniel P. S. de, Silva, Teresa P., Morais, Igor, Fernandes, João A. E. (2025) Chemical and Mineralogical Characterization of Waste from Abandoned Copper and Manganese Mines in the Iberian Pyrite Belt, Portugal: A First Step Towards the Waste-to-Value Recycling Process. Minerals, 15 (1). doi:10.3390/min15010058
 
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