Commodities
PrimaryGold, Silver
SecondaryCopper, Lead
TertiaryZinc, Tellurium, Bismuth, Antimony
Commodity typeM
Deposit
Deposit typeVein
Model85: Polymetallic veins
Deposit sizeS
Materials
Ore mineralsAmalgam, Chalcopyrite, Covellite, Gold, Pyrite, Tetrahedrite
GangueAnkerite, Limonite, Quartz
Geology
Host rockMudstone,Shale,Sandstone · Cutler Formation
Associated rockDiorite · Porphyritic Rocks--Diorite-Monzonite Porphyry
StructureSan Juan Uplift, Four Corners Platform, La Plata Dome, Parrott Fault System
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusPast Producer
First production1875
Last production1931
Discovery year1873
Identification
Deposit ID10014160
MRDS IDD010811
Alternate namesComstock Mill Site, MS 90b, Patented Claims: Comstock, MS 89, Comstock, MS 90a
RegionNA
Data scoreB
Coordinates37.37723, -108.07815
References
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.COLORADO DIV. MINES INF. REPTS.ECKEL AND OTHERS, 1949, P. 103 (AS COMPILED FROM USGS AND USBM RECORDS)