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Powellite from
Overlook Occurrence (Denny Prospect; Iron Cliff), Highland District (Siberia District), Silver Bow Co., Montana, USA

Description
Quality of samples:not specified / average specimens
Confirmation
Validity:Believed Valid
References
References:U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Data
Mineral Data:Click here to view Powellite data
Locality Data:Click here to view Overlook Occurrence (Denny Prospect; Iron Cliff), Highland District (Siberia District), Silver Bow Co., Montana, USA
Mineral and/or Locality
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