Commodities
PrimaryCopper
Commodity typeM
Deposit
Model96: Native Cu
Deposit sizeS
WorkingsUnderground
Ore controlFissure
Materials
Ore mineralsChalcocite
GangueQuartz, Calcite
Geology
Host rockRhyolite · Portage Lake Volcanics
Economic & production
Development statusPast Producer
First production1847
Identification
Deposit ID10082843
MRDS IDW062201
RegionNA
Data scoreB
Coordinates47.34472, -88.23448
References
BUTLER, B.S., AND BURBANK, W.S., 1929, THE COPPER DEPOSITS OF MICHIGAN: USGS PROF PAPER NO. 144, 238 PP.WRIGHT, J.C., AND CORNWALL, H.R., 1954, GEOLOGIC MAP OF THE BRUNEAU CREEK QUADRANGLE, MICHIGAN: U.S. GEOLOGICAL SURVEY, 1:24,000.DAILY MINING GAZETTE, 11 MAY, 1905.WRIGHT AND CORNWALL, 1954