Commodities
PrimaryIron
Commodity typeM
Deposit
Deposit typeSecondary Enrichment
Model241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Deposit sizeS
Ore controlStructural-footwall quartzite and cross-cutting dikes form ore troughs.
Materials
Ore mineralsHematite
GangueChert, Pyrite, Martite
Geology
Host rockIron Formation · Ironwood Iron-Formation
AlterationChert to hematite in oxidation zones
Economic & production
Development statusPast Producer
First production1895
Last production1917
Identification
Deposit ID10106145
MRDS IDW030503
Alternate namesRhinelander, United
RegionNA
Data scoreB
Coordinates46.47556, -89.97566
References
LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO, P. 56.CROWELL, BENEDICT, AND MURRAY, C.B., INC., 1914, 1917, THE IRON ORES OF LAKE SUPERIOR (2ND, 3RD EDS.): CLEVELAND, OHIO, PP. 171-172, 224 RESPECTIVELY.PRINZ, W.L., HUBBARD, H.A., 1975, PRELIMINARY MAP OF THE WAKEFIELD QUADRANGLE, GOGEBIC COUNTY, MICHIGAN. GEOLOGICAL SURVEY DIVISION OF THE MICHIGAN DEPT. OF NATURAL RESOURCES, LANSING, MICHIGAN.HANNA, T.A., 1902, STATE OF MICHIGAN MINES AND MINERAL STATISTICS, MARQUETTE, MICHIGAN. P. 75.