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Iron Ridge Mine (Neda Mine; Oliver Mine), Iron Ridge Mines, Iron Ridge District (Neda Iron District), Dodge Co., Wisconsin, USAi
Regional Level Types
Iron Ridge Mine (Neda Mine; Oliver Mine)Mine
Iron Ridge MinesGroup of Mines
Iron Ridge District (Neda Iron District)Mining District
Dodge Co.County
WisconsinState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 43° 25' 28'' North , 88° 32' 4'' West
Latitude & Longitude (decimal): 43.42467,-88.53446
GeoHash:G#: dp9p135pj
Locality type:Mine
Köppen climate type:Dfa : Hot-summer humid continental climate


Sec 13 T11N R16E. Drift and shaft Iron mine located along the Niagria Escarpment. The mine is located 1 mile north of the town of Iron Ridge and a half a mile north-east of the village of Neda. The mine was active from Spring 1864 to June 1914, and produced hundreds of thousands of tons of iron ore. The Mine is now used as a bat hibernaculum, and is owned by the University of Wisconsin. Collecting inside or outside of the mine is not allowed, but you can visit the mine site with permission from the University of Wisconsin and/or the Wisconsin DNR.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Habit: Forming bands and masses in matrix with Hematite
Colour: Colorless
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Calcite
Formula: CaCO3
Habit: Forming nodules minor crystals oolites and matrix in Hematite at locality
Colour: Colorless to druzy gray
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Dolomite
Formula: CaMg(CO3)2
Habit: Forming masses as an accessory mineral in Hematite.
Colour: Colorless to milkey gray, sometimes with a pinkish tint.
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Goethite
Formula: α-Fe3+O(OH)
Habit: Often forming oolitic masses with Hematite and Calcite
Colour: Reddish brown some metallic luster
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Hematite
Formula: Fe2O3
Habit: oolitic to massive
Colour: Earthy brown to rust
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Magnetite
Formula: Fe2+Fe3+2O4
Habit: Forming oolitic Masses with Hematite, such specimens are not common
Colour: Jet Black
Fluorescence: None
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Opal
Formula: SiO2 · nH2O
Habit: Only found in microscopic masses assocciated with Hematite and Goethite.
Colour: Unknown
Fluorescence: Unknown
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Siderite
Formula: FeCO3
Habit: Sparce component in Hematite often forming masses in matrix. good quality long spear shaped crystals have been recorded though rare
Colour: Jet black
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
Variscite
Formula: AlPO4 · 2H2O
Habit: Microscopic masses and crystals have been identified at the site though very rare.
Colour: Colorless to yellow sometimes pale pink.
Fluorescence: Unknown
Reference: Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Goethite'4.00.α-Fe3+O(OH)
'Hematite'4.CB.05Fe2O3
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Opal'4.DA.10SiO2 · nH2O
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Siderite'5.AB.05FeCO3
Group 8 - Phosphates, Arsenates and Vanadates
'Variscite'8.CD.10AlPO4 · 2H2O
Group 9 - Silicates
'Allophane'9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Variscite40.4.1.1AlPO4 · 2H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Allophane71.1.5.1(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O

List of minerals for each chemical element

HHydrogen
H Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
H Goethiteα-Fe3+O(OH)
H OpalSiO2 · nH2O
H VarisciteAlPO4 · 2H2O
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C SideriteFeCO3
OOxygen
O Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O OpalSiO2 · nH2O
O SideriteFeCO3
O VarisciteAlPO4 · 2H2O
MgMagnesium
Mg DolomiteCaMg(CO3)2
AlAluminium
Al Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Al VarisciteAlPO4 · 2H2O
SiSilicon
Si Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Si OpalSiO2 · nH2O
PPhosphorus
P VarisciteAlPO4 · 2H2O
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe SideriteFeCO3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Paleozoic
251.902 - 541 Ma



ID: 3187973
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Ordovician
443.8 - 485.4 Ma



ID: 2959557
Maquoketa Formation

Age: Ordovician (443.8 - 485.4 Ma)

Stratigraphic Name: Maquoketa Formation

Description: Shale, dolomitic shale and dolomite; includes overlying Neda Formation (age uncertain) consisting of oolitic iron oxides and shale

Comments: Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{shale,dolostone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Chamberlain, T. C. (1877) Geology of Eastern Wisconsin, in Geology of Wisconsin--Survey of 1873-1877, vol. II, p. 93-405.
Hawley, J. E. & A.P. Beavan (1934), Mineralogy and genesis of the Mayville Iron Ore of Wisconsin: American Mineralogist :19 (11): p. 493-514.
U. S. Geological Survey (1976) Mineral and Water Resources of Wisconsin 185 p.


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