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Cogwheels of bournonite are up against colourful vesuvianite.
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Birnessite from
Kelly Bank mine, Lyndhurst-Vesuvius Mining District, Rockbridge County, Virginia, USA


Locality type:Mine
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 Kelly Bank mine, Lyndhurst-Vesuvius Mining District, Rockbridge County, Virginia, USA
Data Identifiers
Mindat Occurrence Record ID:366644
Long-form Identifier:1:3:366644:9
GUID (UUID V4):0
References
Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey.
 
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