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Cummingtonite from Madison Co., Montana, USA

USA
 
  • Montana
    • Madison Co.
      • Cherry Creek Mining District
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
      • Ruby Range
Immega, I. P. and Klein, C. (1976) Mineralogy and petrology of some metamorphic Precambrian iron-formations in southwestern Montana. American Mineralogist, 61, 1111-1144.
 
Mineral and/or Locality  
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