Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Deposit sizeU
Ore controlStructurally controlled on synclinal flank.
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
Identification
Deposit ID10079381
MRDS IDW028640
Alternate namesEthel
RegionNA
Data scoreB
Coordinates46.08861, -88.35226
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, 1952, LAKE SUPERIOR IRON ORES (1ST, 2ND EDS.): CLEVELAND, OHIO. PP. 153, 114 RESPECTIVELY.CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1911, 1914, 1917, THE IRON ORES OF LAKE SUPERIOR (1ST, 2ND, 3RD EDS.): CLEVELAND, OHIO. PP. 115, 197-198, 253-254 RESPECTIVLY.