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Muscovite from
Gem Mine, Butte, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA

Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
References
References:Rocks & Min.: 16: 245.
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Gem Mine, Butte, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
Nearest other occurrences of Muscovite
0.8km (0.5 miles) East Gray Rock Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
0.9km (0.6 miles) Corra Mine (United Copper), Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
1.4km (0.9 miles) Lexington Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
1.4km (0.9 miles) Mountain Consolidated Mine (Mt. Con. Mine; Poulin), Butte, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
1.9km (1.2 miles) Steward Mine, Butte, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
3.6km (2.2 miles) Continental pit (Continental East pit; East Berkeley pit), Silver Bow Park, East Ridge, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
3.6km (2.3 miles) Kelley Mine, Butte, Butte Mining District (Summit Valley Mining District), Silver Bow Co., Montana, USA
13.0km (8.1 miles) Beehive #3 pegmatite, Goldflint Mountain, Boulder Batholith, Jefferson Co., Montana, USA
15.4km (9.6 miles) Beehive #1 pegmatite, Goldflint Mountain, Boulder Batholith, Jefferson Co., Montana, USA
15.6km (9.7 miles) Unnamed Clay deposit [1], Ramsay, Silver Bow Co., Montana, USA
 
Mineral and/or Locality  
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