Commodities
PrimaryCobalt
SecondaryGold, Copper
TertiaryBismuth, Nickel
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formIRREGULAR STRINGERS AND PODS
Ore controlIntersecting Shear Zones Which Trend N 30 Deg W And N-S
Materials
Ore mineralsBismuth, Chalcocite, Chalcopyrite, Cobaltite, Gold, Safflorite
GangueBiotite, Limonite, Magnetite, Pyrite, Pyrrhotite, Quartz, Vivianite
Geology
Host rockSchist · Belt Supergroup
Associated rockGabbro · Gabbro
StructureReverse Faults, Folds. Chicago Zone On Broad Syncline Plunging 43 Deg N
AlterationChlorite
Economic & production
Development statusPast Producer
First production1951
Identification
Deposit ID10070520
MRDS IDW013486
Alternate namesBlackbird Mine
RegionNA
Data scoreB
Coordinates45.12586, -114.3501
References
Umpleby, J.B., 1913, Geology and Ore Deposits of Lemhi County, Idaho: USGS Bulletin 528, 182 P.Anderson, A.L., 1943, Preliminary report on the cobalt deposits in the Blackbird District, Lemhi County, Idaho: Idaho Bureau of Mines and Geology Pamphlet 61, 34 P.Canney, F.C., 1953, Preliminary Report Of Geochemical Investigations In The Blackbird District, Lemhi County, Idaho: USGS Open-File Rept.Reed, G.C., And Herdlick, J.A., 1947, Blackbird Cobalt Deposits, Lemhi County, Idaho: USBM R.I. 4012, P. 5Baldwin, J.A., October 8, 1976, Personal Communication.Trexler, B.D., Jr., 1974, Unpublished Blackbird ReportVhay, J.S., 1948, Cobalt-Copper Deposits Of The Blackbird District, Lemhi County, Idaho: USGS Strategic Minerals Inv. Prelim. Report 3-219, 26 P.