Commodities
PrimaryGold
SecondaryZinc, Copper
Deposit
Deposit typeVeins
Model241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Deposit sizeU
Orebody formIRREGULAR
Ore controlLocalized on the contact of porphyries
Materials
Ore mineralsGold
GangueQuartz, Chalcopyrite, Pyrite, Arsenopyrite
Geology
Host rockPorphyry
StructureRegional trends are east-west., Shear zones
AlterationQuartz-sericite-chlorite-tourmaline
Economic & production
Development statusProspect
Production yearsSHIPPED ORE EVERY YEAR 1903-1920 EXCEPT FOR 1905. PRODUCED FROM STOCKPILE IN 1937.
First production1891
Last production1936
Identification
Deposit ID10310199
MRDS IDLW00199
Alternate namesFire Center Mine
RegionNA
Data scoreC
Coordinates46.59722, -87.65308
References
JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, MARQUETTE COUNTY, P. 40-41, 156-157, SITE ID 520016 & 520063, & MICHIGAN DEPARTMENT OF NATURAL RESOURCES.UNDERGROUND MINE INVENTORY