Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit typeLode
Model96: Native Cu
Deposit sizeS
Orebody formTABULAR
Ore controlConglomerate bed between amygdaloid basalt flows
Materials
Ore mineralsCopper
GangueFeldspar, Epidote, Quartz, Calcite
Geology
Host rockBasalt,Conglomerate · "Pewabic Amygdaloid", "Allouez Conglomerate", "Portage Lake Volcanics"
StructureFelsic conglomerate
Economic & production
Development statusPast Producer
Production years1862-1878 INTRMITTENTLY AS THE ALBANY AND BOSTON MINE; 1883-92 AS PENINSULA MINE; PURCHASED BY FRANKLIN MINING CO. ON 1894.
First production1862
Last production1911
Identification
Deposit ID10082865
MRDS IDW062228
Alternate namesAlbany and Boston, Peninsula
RegionNA
Data scoreB
Coordinates47.17972, -88.52588
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.CORNWALL, H.R., AND WRIGHT, J.C., 1956, GEOLOGIC MAP OF THE HANCOCK QUADRANGLE, MICHIGAN: USGS MAP MF-46, SCALE 1:24000BUTLER, B.S., AND BURBANK, W.S., 1929, P. 77, 93.