Mine detail: Polaris Mine

Previously called ''

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Location

Lat / long: 47.50317, -116.05273

Resource(M)

Primary: Silver
Secondary: Copper, Lead, Zinc, Antimony
Tertiary: Gold
Ore: Tetrahedrite, Galena, Sphalerite, Chalcopyrite
Gangue: Siderite, Quartz, Pyrite, Arsenopyrite
Orebody form: PINCH AND SWELL
Discovery year: 1884

Production

Operation type: Underground
Deposit type: HYDROTHERMAL VEIN AND REPLACEMENT
Production size: Medium
Development status: Past Producer
Production years: 1887-1889, 1891, 1895, 1905, 1916-1917, 1919-1923, 1936-1955, 1957
First production started: 1887
Last production ended: 1957

Geology

Host rock:Wallace Formation, St. Regis Formation
Host type:Quartzite
Structure:Polaris Fault
Tectonic:Belt Basin

References

MAS160790035
DEP10266230
Reference{Deposit:: WILLARD, MAX EMERY, 1938, THE MINERALIZATION AT POLARIS MINE, SHOSHONE COUNTY, IDAHO: MOSCOW, UNIVERISTY OF IDAHO, MS THESIS, 30 P.}{Deposit:: WILLARD, E.M., 1941, MINERALIZATION AT THE POLARIS MINE: ECONOMIC GEOLOGY, V. 36, NO. 5, P. 539-550}{Deposit:: JULIHN, C.E., AND HORTON, F.W., 1936, THE SILVER BELT AND THE SUNSHINE MINE OF THE COEUR *LENE DISTRICT: U.S. BUREAU OF MINES INFORMATION CIRCULAR 6876, P. 14}{Deposit:: SORENSON, R.E., 1951, SHALLOW EXPRESSIONS OF SILVER BELT ORE SHOOTS, COEUR *LENE DISTRICT, IDAHO: MINING ENGINEERING, V. 3, NO. 7, P. 605-611.}{Deposit:: SHANNON, E.V., 1926, THE MINERALS OF IDAHO: U.S. NATIONAL MUSEUM BULLETIN 131, P. 99, 166.}{Deposit:: UMPLEBY, J.B. AND JONES, E.L., JR., 1923, GEOLOGY AND ORE DEPOSITS OF SHOSHONE COUNTY, IDAHO: U.S. GEOLOGICAL SURVEY BULLETIN 732, P. 88-89.}{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.}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur *lene mining district, Shoshone County, Idaho, 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}
ReporterLong, Keith R., Kauffman, John D.