| Lat / long: | 47.49017, -115.98963 |
| Primary: | Silver |
| Secondary: | Antimony, Copper |
| Tertiary: | Zinc, Lead, Gold |
| Ore: | Tetrahedrite, Galena, Sphalerite, Stibnite, Chalcopyrite, Silver, Boulangerite |
| Gangue: | Siderite, Quartz, Pyrite, Arsenopyrite, Ankerite |
| Orebody form: | PINCH AND SWELL |
| Discovery year: | 1885 |
| Operation type: | Underground |
| Deposit type: | HYDROTHERMAL VEIN AND REPLACEMENT |
| Production size: | Medium |
| Development status: | Past Producer |
| Production years: | 1892-1895, 1897-1898, 1919-1922, 1938-1952, 1974, 1976-1991, 1996-1998 |
| First production started: | 1892 |
| Last production ended: | 1998 |
| Host rock: | St. Regis Formation, Revett Formation |
| Host type: | Quartzite |
| Structure: | Osburn Fault, 1.5 km north of Coeur shaft, N75W 60-80SW, Placer Creek Fault, 3.5 km south of Coeur shaft, Big Creek Anticline, north overturned limb strikes N55W, axial plunge 10 to 20 N, axial plane dips 55SW., Polaris Fault, N55W 50-75SW, cuts north limb of Big Creek anticline, a tension fracture extending from the Osburn to the Placer Creek faults., St. Elmo Fault, N50W 60SW, shows reverse movement., Mineral Point Fault, Fort Wayne Fault, N60W 60-70SW, shows normal displacement., Silver Standard Fault, N60W 65SW, shows normal movement. |
| Tectonic: | Belt Basin |
| MRDS | W026665 |
| DEP | 10107346 |
| Reference | {Deposit:: ENG. MINING JOUR., 1976 , ASARC* NEWLY DEDICATED COEUR SILVER MINE WILL BE FOURTH LARGEST IN US: ENG. MINING JOUR., V. 177 , NO. 7 , P. 23 - 27}{Deposit:: CARTER, R. A., AND LI, TAM., 1976 , IDAH* COEUR *LENE DISTRICT SETS SIGHTS ON RECORD PRODUCTION: MINING ENG., V. 28 , NO. 7 , P. 49 - 64}{Deposit:: Fryklund, V.C., Jr., 1964, Ore deposits of the Coeur *lene district, Shoshone County, Idaho: U.S. Geological Survey Professional Paper 445, 103 p.}{Deposit:: Robinson, Robert Blair, 1980, Structural geology and structural origin of the veins of the Coeur mine, Coeur *lene mining district, Shoshone County, Idaho: Moscow, University of Idaho, MS thesis, 98 p.}{Deposit:: Hackbarth, C.J., and Petersen, U., 1982, Zoning in veins of the Galena and Coeur mines, Coeur *lene mining district, Idaho: Geological Society of America Abstracts with Programs, v. 14, no. 6, p. 314.}{Deposit:: Dahl, Mary Katherine, 1981, Structural and stratigraphic control of ore through the Crescent, Sunshine, Silver Summit, Coeur and Galena mines, Coeur *lene mining district, Idaho: Moscow, Univeristy of Idaho, MS thesis, 97 p.}{Deposit:: Hobbs, S. W., And Others, 1965 , Geology Of The Coeur *lene District, Shoshone County, Idaho: USGS Prof. Paper 478 , 139 P.} |
| Reporter | Long, Keith R., Kaufmann, Miller, Pat J. |