Mine detail: Bonanza Mine

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Location: Powell County, Montana, United States, North America
Lat / long: 46.37934, -112.57089
dep_id: 10019598
mrds_id: DC10916
Commodity type: metallic
Major mineral: Gold, Silver, Lead
Minor mineral: Zinc, Copper
Trace mineral: Arsenic, Antimony
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Galena, Gold, Sphalerite, Tetrahedrite
gangue: Ankerite, Pyrite, Quartz
work_type: Underground
alteration: Includes Silicification And Pyritization And Minor Argillization And Sericitization. Porphyritic Basalt Has Been Kaolinized And Bleached.
ore_ctrl: Bedding Plane Fissure
Reporter: Unknown, Wise, Kristine K. (Elliott, James E.)
hrock_type: Basalt
arock_unit: Elkhorn Mountain Volcanics
arock_type: Basalt
Structure: Boulder Batholith
yr_lst_prd: 1960
disc_yr: 1895
discr: W. T. Zosell
References:
  • Deposit:: MBMG BULL 98, P. 19, 57.
  • Deposit:: MBMG BULL 25, P. 41.
  • Deposit:: MBMG BULL 34, P. 18, 19.
  • Deposit:: USGS BULL 842, P. 279-80.
  • Production:: MBMG BULL 98, P 57.
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