Commodities
PrimaryCopper
Commodity typeM
Deposit
Deposit typeLode
Model96: Native Cu
Deposit sizeM
Orebody formTABULAR
Ore controlLode
Materials
Ore mineralsCopper
GangueFeldspar, Epidote, Quartz, Calcite
Geology
Host rockBasalt · "Kearsarge Amygdaloid", "Portage Lake Volcanics"
Economic & production
Development statusPast Producer
Production years1882 TO 1925
First production1882
Last production1925
Identification
Deposit ID10106403
MRDS IDW062246
RegionNA
Data scoreB
Coordinates47.26833, -88.41144
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.WHITE, W.S., CORNWALL, H.R., AND SWANSON, R.W., 1953, BEDROCK GEOLOGY OF THE AHMEEK QUADRANGLE; USGS MAP GQ-27, SCALE 1:24000BUTLER, B.S., AND BURBANK, W.S., 1929, P. 70, 98.