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Cryptomelane from
Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA

Locality type:Mining District
Classification
Species:Cryptomelane
Formula:K(Mn74+Mn3+)O16
Confirmation
Validity:Believed Valid
References
References:Weed, W. H. Geology and Ore Deposits of the Butte District, Montana; "Butte, Montana, Minerals, Mines and History", The Mineralogical Record, Vol 33, No. 1, Jan-Feb, 2002
Data
Mineral Data:Click here to view Cryptomelane data
Locality Data:Click here to view Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
Nearest other occurrences of Cryptomelane
67.1km (41.7 miles) Algonquin Mine (West Algonquin; Trout-Algonquin Mine), Philipsburg Mining District (Flint Creek Mining District), Granite Co., Montana, USA
67.4km (41.9 miles) Phillipsburg Manganese Occurrence, Philipsburg Mining District (Flint Creek Mining District), Granite Co., Montana, USA
 
Mineral and/or Locality  
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