Commodities
PrimaryCopper, Cobalt
TertiaryNickel
Commodity typeM
Deposit
Deposit typeBlackbird Co Cu
Deposit sizeN
WorkingsSurface/Underground
Orebody formSTRINGERS, IRREGULAR
Materials
Ore mineralsChalcocite, Chalcopyrite, Cobaltite, Copper, Covellite, Safflorite
GangueApatite, Goethite, Pyrite, Pyrrhotite, Quartz
Geology
Host rockQuartzite · Banded siltite unit of Apple Creek Formation, Belt Supergroup
AlterationTourmaline, Iron Oxides
Economic & production
Development statusProspect
Discovery year1951
Identification
Deposit ID10067853
MRDS IDW000725
Alternate namesStevenson, Merle 3 and 4
RegionNA
Data scoreB
Coordinates45.12657, -114.33211
References
Vhay, J.S., 1948, Cobalt-Copper Deposits In The Blackbird District, Lemhi County, Idaho: USGS Strategic Minerals Inv. Prelim. Rept. 3-219, 26 P.Shockey, P.N., 1957, Reconnaissance Geology Of The Leesburg Quadrangle, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 113, 42 P.Umpleby, J.B., 1913, Geology And Ore Deposits Of Lemhi County, Idaho: USGS Bulletin 528, 182 P.Anderson, A.L., 1943, A Preliminary Report On The Cobalt Deposits In The Blackbird District, Idaho: Idaho Bureau Of Mines And Geology Pamph 61, P. 34Johnson, Rick, Close, Terry, and McHugh, Ed, 1998, Mineral resource appraisal of the Salmon National Forest: U.S. Geological Survey Open-File Report 98-478, 277 p. (Stevenson Prospect Area p. 170-171)Unpublished Cobalt Report