Mine detail: Mineral Mountain Mine

Previously called 'Chester GroupPolaris Group'

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Location

Lat / long:

47.50457, -116.05523

Resource(M)

Primary:	Silver
Secondary:	Copper, Lead
Tertiary:	Nickel, Antimony, Cobalt, Zinc
Ore:	Anglesite, Boulangerite, Bournonite, Chalcopyrite, Erythrite, Galena, Gersdorffite, Proustite, Pyrargyrite, Tetrahedrite
Gangue:	Ankerite, Calcite, Pyrite, Quartz, Siderite
Orebody form:	BUNCHES
Discovery year:	1884

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1886

Geology

Host rock:	St. Regis Formation-Quartzitic Sandstones; Shales;Wallace Formation-Sandstones; Calcareous Shales
Host type:	Sandstone
Structure:	Ag Ore Occurs In Subsided Block Between The Polaris And Big Creek Faults.
Alteration processes:	Bleaching; Sericitization

References

MRDS	W019537
DEP	10073446
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:: WILLARD, M. E., 1941 , MINERALIZATION AT THE POLARIS MINE, IDAHO: ECON. GEOLOGY, V. 36 , NO. 5 , P. 539 - 550}{Deposit:: FRYKLUND, V. C., JR., 1964 , ORE DEPOSITS OF THE COEUR *ALENE DISTRICT, SHOSHONE COUNTY, IDAHO: USGS PROF. PAPER 445 , 103 P.}{Deposit:: HECL * 1973 ANNUAL COMPANY REPORT.}{Deposit:: 5) RANSOME, F. L., AND CALKINS, F. C., 1908 , THE GEOLOGY AND ORE DEPOSITS OF THE COEUR *ALENE DISTRICT, IDAHO: USGS PROF PAPER 62 , 203 P}{Deposit:: 6) WESTERN MINING NEWS, 1974 - 75 DIRECTORY OF MINES IN IDAHO (COEUR *ALENES) AND WASHINGTON, P. 88}{Deposit:: 1908 GEOLMAP RANSOME AND CALKINS, PROF. PAPER 62}{Deposit:: 1923 GEOLMAP UMPLEBY AND JONES, BULL. 732}{Deposit:: 1964 OTHER V. C. FRYKLUND, PROF. PAPER 445}{Production:: SPOKANE CHRONICLE, MAY 18 , 1971 ; AP. 13 , 1969 ; MAY 21 , 1969}
Reporter	Miller, Pat J.