Mine detail: Horsema
* Prospect

Previously called 'George Horsema
* PropertyWinchester Copper'

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Location

Lat / long:

46.06766, -116.71042

Resource(M)

Primary:	Copper
Secondary:	Silver
Tertiary:	Gold, Molybdenum
Ore:	Chalcopyrite, Chrysocolla, Copper, Molybdenite
Gangue:	Calcite, Pyrite, Siderite, Talc

Production

Operation type:	Surface-Underground
Production size:	None
Development status:	Prospect

Geology

Host rock:	Seven Devils Volcanics-Crushed Green Andesite Schist
Host type:	Andesite
Alteration processes:	Silicification

References

MRDS	W015976
MAS	160690004
DEP	10072121
Reference	{Deposit:: Hubbard, C. R., 1955, Idaho Bureau Of Mines And Geology Open-File Report, 6 P.}{Deposit:: Livingston, D. C., And Laney, F. B., 1920, The Copper Deposits Of The Seven Devils And Adjacent Districts: Idaho Bureau Of Mines And Geology Bulletin 1, 105 P.}{Deposit:: Hubbard, C. R., 1956, Geology And Mineral Resources Of Nez Perce County: Idaho Bureau Of Mines And Geology County Rept. 1, 17 P.}
Reporter	Miller, Pat J., Western Field Operations Center (WFOC)