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Muscovite from
Homestake Pass, Boulder Batholith, Jefferson Co., Montana, USA

Locality type:Pass
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
References
References:van Laer, W.C. (1979) Tourmalines of the Homestake Pass. Lapidary Journal, 33, 58-64.
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Homestake Pass, Boulder Batholith, Jefferson Co., Montana, USA
Nearest other occurrences of Muscovite
4.9km (3.0 miles) Beehive #3 pegmatite, Goldflint Mountain, Boulder Batholith, Jefferson Co., Montana, USA
7.8km (4.8 miles) Pohndorf Mine (Pondorff Mine), Toll Mountain, Boulder Batholith, Jefferson Co., Montana, USA
8.6km (5.3 miles) Beehive #1 pegmatite, Goldflint Mountain, Boulder Batholith, Jefferson Co., Montana, USA
10.8km (6.7 miles) Kelley Mine, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
11.0km (6.8 miles) Continental pit (Continental East pit; East Berkeley pit), Silver Bow Park, East Ridge, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
14.0km (8.7 miles) Steward Mine, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
14.3km (8.9 miles) Gem Mine, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
14.3km (8.9 miles) Mountain Consolidated Mine (Mt. Con. Mine; Poulin), Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
14.4km (8.9 miles) East Gray Rock Mine, Walkerville, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
14.8km (9.2 miles) Corra Mine (United Copper), Walkerville, Butte Mining District (Summit Valley Mining District), Butte-Silver Bow (Butte; Silver Bow Co.), Montana, USA
 
Mineral and/or Locality  
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