Mine detail: Invincible Shaft

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Location: Custer County, Colorado, United States, North America
Lat / long: 38.10779, -105.34807
dep_id: 10012192
mrds_id: D007664
Commodity type: metallic
Major mineral: Silver, Copper
Minor mineral: Lead, Iron
Operation type: Underground
Production size: No production occurred
Development status: Past Producer
ore: Chalcopyrite, Covellite, Galena, Malachite, Pyrite, Silver, Stephanite, Tetrahedrite
gangue: Barite, Calcite, Clay
model: 82: Epithermal veins
alteration: Weakly Argillized, Strongly Argillized In Places
ore_ctrl: On Pioneer Vein
Reporter: Collins, Donna B., Beach, Richard A.
hrock_type: Andesite
arock_unit: Rosita Andesite
arock_type: Andesite
Structure: Rosita Cauldron And Crater Complex, North-Trending Fissures Dipping 60 To 70 Degrees East; Trachyte Dike Nearby
tectonic: Wet Mountains
dy_ba: <
disc_yr: 1895
References:
  • Deposit:: CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403.
  • Deposit:: SIEMS, P.L., 1967, VOLCANIC AND ECONOMIC GEOLOGY OF THE ROSITA HILLS AND SILVER CLIFF DISTRICTS, CUSTER COUNTY, COLORADO: COLORADO SCHOOL MINES, D.SC THESIS, T1042, 222 P.
  • Deposit:: SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAPS I-1081.
  • Reserve-Resource:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.
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