Description
Northwest Copper Co.
Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR MASSES, STRINGERS
Ore controlFracture Zone
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Cuprite, Malachite
GangueDiopside, Epidote, Garnet
Geology
Host rockSkarn (Tactite) · Martin Bridge Limestone-Tactite
Associated rockDiorite · Quartz Diorite;Seven Devils Volcanics-Andesites, Rhyolites Conglom
StructureDoubly Plunging Anticlinal Uplifts Separated By A Syncline; Strike North.
Tectonic settingIsland Arc Volcanic Chain
AlterationOxidation
Economic & production
Development statusPast Producer
Discovery year1897
Identification
Deposit ID10070112
MRDS IDW012805
RegionNA
Data scoreB
Coordinates45.16459, -116.651
References
Cook, E. F., 1954, Mining Geology Of The Seven Devils Region: Idaho Bureau Of Mines And Geology Pamphlet 97, 22 P1954 Geolmap Idaho Bureau Of Mines And Geol., Pamphlet 9Cannon, R.S. and Grimaldi, F.S, Lindgrenite and Cuprotungstite From the Seven Devils District, Idaho.\n(http://www.minsocam.org/ammin/AM38/AM38_903.pdf)Cook, E. F., 1954, Idaho Bureau Of Mines And Geol. Pamphlet 97, 22 P.