Commodities
PrimaryGold, Silver, Copper, Lead
SecondaryZinc
Commodity typeM
Deposit
Deposit typeSkarn Au
Model64: Skarn Au
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR PIPES
Ore controlLimestone-Granodiorite Contact, And Associated Fractures
Materials
Ore mineralsBornite, Chalcopyrite, Chrysocolla, Galena, Gold, Malachite, Melaconite, Silver, Smithsonite, Sphalerite
GangueCalcite, Chlorite, Epidote, Garnet, Gypsum, Idocrase, Limonite, Magnetite, Pyrite, Quartz, Siderite, Sulfur
Geology
Host rockLimestone · Madison
Associated rockDiorite · Bannack Stock
AlterationOxidation, Intense Garnetization
Economic & production
Development statusPast Producer
Discovery year1863
Identification
Deposit ID10090077
MRDS IDW007445
Alternate namesNew York-Montana, Sleeping Princess, Bannack
RegionNA
Data scoreA
Coordinates45.15518, -112.98561
References
USGS BULL 574.ENG AND MIN JOUR, V. 64.USGS MAP I-433.MBMG BULL 6, P. 41-42.1914 COMPILE WINCHELL, A. N. - DILLON QUAD.1931 COMPILE M.B.M.G. BULLETIN 6.1965 GEOLMAP LOWELL, W. R. MAP OF BANNACK - GRAYLING1972 RECON M.B.M.G. BULL. 85GEACH, R. D., 1972, MT. BUREAU OF MINES & GEOLOGY BULL. 85.