Mine detail: Hecla Mine

Previously called ''

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Location

Lat / long: 47.51847, -115.81742

Resource(M)

Primary: Silver, Lead
Secondary: Copper, Zinc
Tertiary: Gold
Ore: Galena, Tetrahedrite, Sphalerite, Chalcopyrite, Cerussite
Gangue: Quartz, Siderite, Pyrite, Pyrrhotite, Calcite, Limonite
Orebody form: PINCH AND SWELL
Discovery year: 1885

Production

Operation type: Underground
Deposit type: HYDROTHERMAL REPLACEMENT VEIN
Production size: Large
Development status: Past Producer
Production years: 1898-1951
First production started: 1897

Geology

Host rock:Burke Formation, Upper Prichard Formation
Host type:Quartzite
Structure:Host fault for the Hecla vein is a feather joint off a N-S shear, part of system of N-S shears that connect the Osburn and Thompson Pass faults.
Tectonic:Belt Basin

References

MRDSW026649
DEP10078357
Reference{Deposit:: UMPLEBY, J. B., AND JONES, E. L., JR., 1923 , GEOLOGY AND ORE DEPOSITS OF SHOSHONE COUNTY, IDAHO: USGS BULL. 732 , 156 P.}{Deposit:: FRYKLUND, V. C., JR., 1964 , ORE DEPOSITS OF THE COEUR *LENE DISTRICT, SHOSHONE COUNTY, IDAHO: USGS PROF. PAPER 445 , 103 P.}{Deposit:: RANSOM, F. L., AND CALKINS, F. C., 1908 , THE GEOLOGY AND ORE DEPOSITS OF THE COEUR *LENE DISTRICT, IDAHO: USGS PROF. PAPER 62 , 203 P.}{Deposit:: RANSOME, F. L., 1905 , ORE DEPOSITS OF THE COEUR *LENE DISTRICT, IDAHO: USGS BULL. 260 , P. 274 - 303 .}{Deposit:: GRIGGS, A. B., 1952 , GEOLOGY AND NOTES ON ORE DEPOSITS IN CANYON - NINE MILE CREEKS AREA, SHOSHONE COUNTY, IDAHO: USGS OPEN-FILE REPT., 108 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.}{Production:: Long, K.R., 1998, Grade and tonnage models for Coeur *lene-type polymetallic veins: US Geological Survey Open-File Report 98-583m 28 p.}
ReporterLong, Keith R., Miller, Pat J., Kauffman, John D.