Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeS
Ore controlNear stratigraphic top of iron formation
Materials
Ore mineralsHematite
GangueJasper, Magnetite, Chert, Garnet, Siderite, Hornblende, Actinolite, Mica, Chlorite, Grunerite
Geology
Host rockIron Formation · Negaunee Iron-Formation
AlterationChert to compact or specular hematite and magnetite
Economic & production
Development statusPast Producer
First production1872
Last production1905
Identification
Deposit ID10079318
MRDS IDW028540
RegionNA
Data scoreB
Coordinates46.53917, -88.09865
References
KLASNER, J. S., AND CANNON, W. F., 1978 , BEDROCK GEOLOGY MAP OF THE SOUTHERN PART OF THE MICHIGAMME AND THREE LAKES QUADRANGLES, MARQUETTE & BARAGA COUNTIES, MICHIGAN, USGS MAP 1 - 1078 .LAKE SUPERIOR IRON ORE ASSOCIATION, 1938 , LAKE SUPERIOR IRON ORES ( 1ST ED. ): CLEVELAND, OHIO, P. 112 .HANNA, T. A., 1902 , STATE OF MICHIGAN MINES AND MINERAL STATISTICS MARQUETTE, MICHIGAN, P. 78 .SECTION FILES, MICHIGAN GEOLOGICAL SURVEY, CLEVELAND-CLIFFS IRON COMPANY, 1950 , SECTION FILES OF THE GEOLOGICAL SURVEY DIVISION OF MICHIGAN DEPT. OF NATURAL RESOURCES.