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Electrum from
Marget Ann Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA

Locality type:Mine
Classification
Species:'Electrum' (not an IMA approved species)
Formula:(Au, Ag)
Confirmation
Validity:Believed Valid
References
References:Chris Gammons and Ryan Stevenson (2015) Silver Mineralogy of the Butte Mines. 2015 Mining and Mineral Symposium, Montana Bureau of Mines and Geology p50; Gammons, C. H., Szarkowski, J., & Stevenson, R. (2016) New investigations of the mineralogy of silver in the world-class porphyry-lode deposits of Butte, MT. Mining engineering Magazine website
Data
Mineral Data:Click here to view Electrum data
Locality Data:Click here to view Marget Ann Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
Nearest other occurrences of Electrum
48.4km (30.1 miles) Montana Tunnels Mine (Part of Corbin Copper Claims), Colorado Mining District (Prickly Pear Mining District; Corbin Mining District), Jefferson Co., Montana, USA
 
Mineral and/or Locality  
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