Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeM
Ore controlStratigraphically controlled.
Materials
Ore mineralsHematite, Goethite
GangueChert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica
Geology
Host rockIron Formation
AlterationChert and siderite to hematite and goethite in oxidation zones.
Economic & production
Development statusPast Producer
First production1913
Last production1963
Identification
Deposit ID10079419
MRDS IDW028952
RegionNA
Data scoreB
Coordinates46.07861, -88.62172
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, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO. P. 108.CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1914, 1917, 1920, 1923, 1927, 1930, THE IRON ORES OF LAKE SUPERIOR (2ND-7TH EDS.): CLEVELAND, OHIO. PP. 186-187, 241, 218, 268, 287-288, 258 RESPECTIVLY.JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 23-27, MICHIGAN DEPARTMENT OF NATURAL RESOURCES.