Mine detail: Fortune Lake Mine

Previously called ''

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Location

Lat / long: 46.1, -88.38977

Resource(M)

Primary: Iron
Ore: Hematite, Goethite
Gangue: Chert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica

Production

Operation type: Surface-Underground
Deposit type: Secondary Enrichment
Production size: Unknown
Development status: Past Producer
First production started: 1953
Last production ended: 1968

Geology

Host type:Iron Formation
Alteration processes:Chert and siderite to hematite and goethite in oxidation zones.

References

MRDSW028641
DEP10106112
Reference{Deposit:: JAMES, H.C., 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.}{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO. P. 114.}{Deposit:: REED, R.C., 1975, ONE THOUSAND MILLION TONS, MICHIGAN IRON ORE SHIPMENTS THROUGH 1974, CIRCULAR 12, GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPARTMENT OF NATURAL RESOURCES, LANSING, MICHIGAN. P. 10.}{Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 154-156, MICHIGAN DEPARTMENT OF NATURAL RESOURCES,}
ReporterYeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)