Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeS
Ore controlStructurally controlled
Materials
GangueQuartz, Chert, Mica, Garnet, Actinolite
Geology
Host rockIron Formation · Negaunee Iron-Formation
AlterationChert to hematite and magnetite in oxidation zones.
Economic & production
Development statusPast Producer
First production1906
Last production1906
Identification
Deposit ID10106101
MRDS IDW028530
RegionNA
Data scoreB
Coordinates46.45639, -88.09559
References
SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND CLIFFS IRON CO., 1951 , SECTION FILES OF GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES, LANSING, MICHIGAN.LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED. ): CLEVELAND, OHIO, P. 111 .KLASNER, J. S., AND CANNON, W. F., 1976 , GEOLOGIC MAP AND GEOPHYSICAL INTERPRETATION OF THE WITCH LAKE QUADRANGLE, MARQUETTE, IRON AND BARAGA COUNTIES, MICHIGAN: US GEOLOGICAL SURVEY, MISCELLANEOUS INVESTIGATIONS SERIES MAP I-987 .