Mine detail: Big Chief Prospect

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Location: Madison County, Montana, United States, North America
Lat / long: 45.51768, -112.11337
dep_id: 10013233
mrds_id: D009420
Commodity type: metallic and nonmetallic
Major mineral: Mica
Trace mineral: Beryllium
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
gangue: Apatite, Biotite, Muscovite, Plagioclase, Quartz
other_matl: Beryl
orebody_fm: PODS, PIPES
Reporter: Loen, Jeffrey S. (Pearson, Robert C.)
hrock_unit: Cherry Creek
hrock_type: Schist
Structure: High Angle E And Ne Trending Faults
Year first produced: 1943
yr_lst_prd: 1944
References:
  • M.B.M.G. MEM. 28, 1949, P. 22-23
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