Description
Frank Mansikka Neihart, Montana
Commodities
PrimaryMolybdenum
TertiaryCopper, Tungsten, Lead
Commodity typeM
Deposit
Deposit sizeN
WorkingsSurface/Underground
Orebody formIRREGULAR
Ore controlFracturing And Alteration
Materials
Ore mineralsChalcopyrite, Galena, Molybdenite, Molybdite
GangueFluorite, Quartz
Geology
Host rockGneiss · Gneisses And Schists
StructureLittle Belt Mountains Are A Broad East - West Arch, Significant Intrusion By Porphyries And Diorites
AlterationSome Silicification Of Country Rock
Economic & production
Development statusOccurrence
Discovery year1922
Identification
Deposit ID10096465
MRDS IDW026530
RegionNA
Data scoreB
Coordinates46.96574, -110.71306
References
HERDLICK, J. A., 1949 , INVESTIGATION OF THE BIG BEN MOLYBDENUM DEPOSIT, NEIHART DISTRICT, CASCADE, MONT; US BUREAU OF MINES REPT. OF INV. 4406ROBERTSON, A. F., 1951 , MINES AND MINERAL DEPOSITS (EXCEPT FUELS) CASCADE COUNTY, MONTANA, U. S. BUREAU OF MINES INFO. CIRCULAR 7589 P 59 - 61SCHAFER, P. A., 1935 , GEOLOGY AND ORE DEPOSITS OF THE NEIHART MINING DISTRICT, CASCADE COUNTY, MONTANA, MONT. BUREAU OF MINES AND GEOL. MEMOIR NO. 13 P. 56 - 57CREASEY, S.C., SCHOLZ, E.A., 1944, BIG BEN MOLYBDENUM DEPOSIT, NEIHART MINING DISTRICT, CASCADE COUNTY: MONTANA GEOLOGICAL SOCIETY PRELIMINARY REPORT, P. 29.1943 DIREXPL BUREAU OF MINE