Commodities
PrimaryCopper
SecondarySilver, Gold
Commodity typeM
Deposit
Deposit typeContact Metasomatic
Deposit sizeS
WorkingsSurface/Underground
Orebody formIRREGULAR
Ore controlContact Zone Of Stock And Limestone And Alteration Of Isolated Limestone Blocks Within Intrusive To Tactite And Sulfide Minerals
Materials
Ore mineralsChalcocite, Chalcopyrite, Chrysocolla, Cuprite, Malachite
GangueDiopside, Garnet, Magnetite, Pyrite
Geology
Host rockLimestone · Madison
Associated rockQuartz Monzonite · Quartz Monzonite
StructureNorth - Striking And Northeast - Striking Faults, North - Striking Fault May Have Exerted Structural Control On Emplacement Of Qtz Monzonite Stock.
Tectonic settingFault Block Mountain
AlterationTactite Minerals And Pyritization
Economic & production
Development statusPast Producer
First production1916
Discovery year1900
Identification
Deposit ID10078289
MRDS IDW026551
Alternate namesMountain View
RegionNA
Data scoreB
Coordinates45.60296, -112.18837
References
MBMG BULL 24, P. 26-27.ROBY, R. N., 1946 , EXPLORATION OF THE MOFFET - JOHNSTON COPPER PROPERTY, MADISON COUNTY, MONTANA: U S BUREAU OF MINES REPORT OF INVESTIGATIONS 3939 , 12 P.1943 DIREXPL ROBY, USBM PUBLISHED REPORT1957 COMPILE JOHNS W. M. PUBLISHED REPORTROBY, 1946 , MOFFET - JOHNSTON COPPER PROPERTY, P. 2 , 3W. S. MOORE CO. AND ISO COPPER