Idaho · Shoshone County
Producer

Tamarack and Custer Mine

Shoshone County, Idaho, United States
ZincSilverLeadGoldCopper
⌖ Show on mapUSGS source ↗
Description

William H. Clagett and others

Commodities
PrimaryZinc, Silver, Lead
TertiaryGold, Copper
Commodity typeM
Deposit
Deposit typeHYDROTHERMAL VEIN AND REPLACEMENT
Model{85: Polymetallic veins}
Deposit sizeM
WorkingsUnderground
Orebody formPINCH AND SWELL
Ore control"Portions of the Puritan-Standard fault are mineralized, but most ore was found at the intersection of flat-lying quartzite with faults subsidiary to the Puritan-Standard fault."
Materials
Ore mineralsGalena, Sphalerite, Chalcopyrite, Boulangerite, Smithsonite, Cerussite
GangueQuartz, Siderite, Magnetite, Pyrite, Calcite, Pyrrhotite, Hematite, Limonite
Geology
Host rockQuartzite,Meta-Argillite · "Burke Formation", "Prichard Formation"
Structure"Broad Anticlinal Arch Trending N Broken By Many Cross Faults", "Phoenix, Puritan-Standard and Nilus Faults"
Tectonic setting"Belt Basin"
Alteration"Bleaching; Sericite-Chlorite; Clay; Carbonates; Good ore is found outside of bleached zones, however.", "Supergene alteration (oxidation) extends to no more than 30 meters depth. Minerals found in the oxide zone include limonite, cerussite, and smithsonite."
Economic & production
Development statusProducer
Production years1888-1892, 1895-1899, 1904-1907, 1913-1931; 1934-1958; 1978
First production1888
Last production1978
Discovery year1885
Identification
Deposit ID10107345
MRDS IDW026647
Alternate namesCuster Mine, Tamarack and Chesapeak Mine
RegionNA
Data scoreA
Coordinates47.53567, -115.84792
References
{Deposit:: Umpleby, J.B., and Jones, E.L., Jr., 1923, Geology and ore deposits of Shoshone County, Idaho: U.S. Geological Survey Bulletin 732, 156 p.}{Deposit:: Fryklund, V.C., Jr., 1964, Ore deposits of the Coeur d'Alene district, Shoshone County, Idaho: U.S. Geological Survey Professional Paper 445, 103 p..}{Deposit:: Bulla, Edward W., 1951, A mineragraphic study of ore from the Tamarack mine, Burke, Idaho: Moscow, Idaho, University of Idaho, M.S. thesis, 58 p.}{Deposit:: Stephens, E.C., 1946, Memorandum on the Day properties (Tamarack, Hercules, Amazon-Manhattan, Dayrock), Coeur d'Alene district, Shoshone County, Idaho: Butte, Montana, Anaconda Copper Mining Co., Geological Dept., 5 p. [Anaconda Archive #22019.01]}{Deposit:: Gidel, M.H., 1929, Report on properties adjoining the Sunset GroupL Butte, Mont., Anaconda Copper Mining Co., Geological Dept., 23 p. [Anaconda Archive 21621.09]}{Deposit:: Hollister, V.F., 1950, File memorandum, Tamarack mine, Placer Center Dist., Shoshone Co., Idaho, 2 p.}{Deposit:: Shenon, P.J., and others, 1954, Geological study of the Custer Peak area, Beaver, Placer Center, Lelande, Hunter, and Summit mining districts, Shoshone County, Idaho, 138 p.}{Geology:: Griggs, A.B., 1952, Geology and notes on ore deposits of Canyon-Nine Mile creek area, Shoshone County, Idaho: U.S. Geological Survey Open-File Report 52-55, 108 p.}{Production:: CROSBY, G. M., 1969 , A preliminary examination of trace mercury in rocks, Coeur d'Alene district, Idaho: Colorado School of Mines Quarterly, v. 64, no. 1, p. 169-194.}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur d'Alene mining district, Shoshone County, Idaho; 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}{Production:: Long, K.R., 1998, Grade and tonnage models for Coeur d'Alene-type polymetallic veins: US Geological Survey Open-File Report 98-583, 28 p.}