Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Model241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Deposit sizeU
Ore controlStratigraphically controlled, fault related.
Materials
Ore mineralsLimonite, Hematite, Goethite
GangueChert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica
Geology
Host rockIron Formation · Riverton Iron-Formation
AlterationChert and siderite to limonite, hematite, goethite in oxidation zones.
Economic & production
Development statusPast Producer
First production1913
Last production1921
Identification
Deposit ID10079399
MRDS IDW028925
Alternate namesPurcell Mine, Wapama Mine
RegionNA
Data scoreB
Coordinates46.1175, -88.65449
References
JAMES, H.L., DUTTON, C.E., PETTIJOHN, F.J., WIER, K.L., 1968, GEOLOGY AND ORE DEPOSITS OF THE IRON RIVER, CRYSTAL FALLS DISTRICT, IRON COUNTY, MICHIGAN. WASHINGTON, U.S. GOVT. PRINTING OFFICE, 1968. PP. 45-56, 88-110.LAKE SUPERIOR IRON ORE ASSOCIATION, 1938, LAKE SUPERIOR IRON ORES (1ST ED.): CLEVELAND, OHIO. P. 151.CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1920, THE IRON ORES OF LAKE SUPERIOR (4TH ED.): CLEVELAND, OHIO, P. 226.JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 118-119, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.