Mine detail: Comstock Mine

Previously called 'Comstock Mill Site, MS 90bPatented Claims: Comstock, MS 89Comstock, MS 90a'

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Location: La Plata County, Colorado, United States, North America
Lat / long: 37.37723, -108.07815
dep_id: 10014160
mrds_id: D010811
Commodity type: metallic
Major mineral: Gold, Silver
Minor mineral: Copper, Lead
Trace mineral: Zinc, Tellurium, Bismuth, Antimony
Operation type: Unknown
Deposit type: Vein
Production size: Small ammount of material produced
Development status: Past Producer
ore: Amalgam, Chalcopyrite, Covellite, Gold, Pyrite, Tetrahedrite
gangue: Ankerite, Limonite, Quartz
model: 85: Polymetallic veins
Reporter: Schwochow, Stephen D.
hrock_unit: Cutler Formation
hrock_type: Mudstone,Shale,Sandstone
arock_unit: Porphyritic Rocks--Diorite-Monzonite Porphyry
arock_type: Diorite
Structure: San Juan Uplift, Four Corners Platform, La Plata Dome, Parrott Fault System
tectonic: Central Cordillera (Southern Rocky Mtns)
Year first produced: 1875
yr_lst_prd: 1931
disc_yr: 1873
discr: A.K. Fleming
References:
  • Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 69-70, 103-104, PL. 17.
  • Deposit:: COLORADO DIV. MINES INF. REPTS.
  • Production:: ECKEL AND OTHERS, 1949, P. 103 (AS COMPILED FROM USGS AND USBM RECORDS)
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