Mine detail: Twilight Mine

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Location: Deer Lodge County, Montana, United States, North America
Lat / long: 46.21739, -113.24619
dep_id: 10102002
mrds_id: DC10952
Commodity type: metallic
Major mineral: Gold
Minor mineral: Iron
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Gold, Hematite, Iron, Limonite
gangue: Pyrite, Quartz
orebody_fm: IRREGULAR
work_type: Underground
alteration: Pyritization, Oxidation
Reporter: Unknown, Wise, Kristine K. (Elliott, James E.)
hrock_unit: Hasmark Formation
hrock_type: Limestone
arock_unit: Cable Stock
arock_type: Diorite
Structure: Philipsburg Batholith, Cable Stock
prod_yrs: PRE-1906
References:
  • Deposit:: MONT. BUREAU OF MINES & GEOL. INF. CIRC. 13, 1956, PL. 4
  • Deposit:: USGS PP 78, P. 235.
  • Production:: CALKINS, AND EMMON 1913 USGS PROF. PAPER 78
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