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Ashland County, Wisconsin, USAi
Regional Level Types
Ashland CountyCounty
WisconsinState
USACountry

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PhotosMapsSearch
00025120015440240538397.jpg
Bayfield Sandstones on Madeline Island

Ashland County, Wisconsin, USA
06663140014961635322539.jpg
The North End of the Ashland Black Granite Quarry

Ashland Black Granite Quarry, Ashland County, Wisconsin, USA
08394890014960867578805.jpg
The West Side of the Ashland Black Granite Quarry

Ashland Black Granite Quarry, Ashland County, Wisconsin, USA
02728740015440240435399.jpg
Bayfield Sandstones on Madeline Island

Ashland County, Wisconsin, USA
03443690014960867734861.jpg
The North End of the Ashland Black Granite Quarry

Ashland Black Granite Quarry, Ashland County, Wisconsin, USA
04322450015432866545437.jpg
The West Side of the Ashland Black Granite Quarry

Ashland Black Granite Quarry, Ashland County, Wisconsin, USA
00025120015440240538397.jpg
Bayfield Sandstones on Madeline Island

Ashland County, Wisconsin, USA
03443690014960867734861.jpg
The North End of the Ashland Black Granite Quarry

Ashland Black Granite Quarry, Ashland County, Wisconsin, USA
Neighbouring regions:
Bayfield County, Wisconsin, USA
Iron County, Wisconsin, USA
Sawyer County, Wisconsin, USA
Price County, Wisconsin, USA
Type:
County
Largest Settlements:
PlacePopulation
Ashland8,040 (2017)
Mellen700 (2017)
Glidden507 (2017)
New Odanah472 (2017)
Butternut364 (2017)
Birch Hill293 (2017)
Mindat Locality ID:
25688
Long-form identifier:
mindat:1:2:25688:8
GUID (UUID V4):
d1f6a962-e7eb-4c47-97ee-95a8f5d01e2a
Other Languages:
View 31 more...
French:
comtΓ© d'Ashland, Wisconsin, Γ‰tats-Unis
German:
Ashland County, Wisconsin, Vereinigte Staaten
Italian:
contea di Ashland, Wisconsin, Stati Uniti d'America
Russian:
ЭшлСнд, Висконсин, Π‘ΠΎΠ΅Π΄ΠΈΠ½Ρ‘Π½Π½Ρ‹Π΅ Π¨Ρ‚Π°Ρ‚Ρ‹ АмСрики
Simplified Chinese:
ι˜Ώδ»€ε…°εŽΏ, ε¨ζ–―εΊ·θΎ›ε·ž, ηΎŽε›½
Spanish:
Condado de Ashland, Wisconsin, Estados Unidos
Albanian:
Ashland County, Wisconsin, Shtetet e Bashkuara tΓ« AmerikΓ«s
Arabic:
Ω…Ω‚Ψ§Ψ·ΨΉΨ© Ψ’Ψ΄Ω„Ψ§Ω†Ψ―, ΩˆΩŠΨ³ΩƒΩˆΩ†Ψ³Ω†, Ψ§Ω„ΩˆΩ„Ψ§ΩŠΨ§Ψͺ Ψ§Ω„Ω…ΨͺΨ­Ψ―Ψ©
Basque:
Ashland konderria , Wisconsin
Bavarian:
Ashland County, Wisconsin, Vaoanigte Stootn
Bishnupriya Manipuri:
অ্যাসল্যান্঑ ΰ¦•ΰ¦Ύΰ¦‰ΰ¦¨ΰ§ΰ¦Ÿΰ¦Ώ, উইসকনসিন, ঀিলΰ¦ͺারাষ্ট্র
Bulgarian:
Ашланд, Уисконсин, БъСдинСни амСрикански Ρ‰Π°Ρ‚ΠΈ
Cebuano:
Ashland County , Wisconsin
Dutch:
Ashland County, Wisconsin, Verenigde Staten
Esperanto:
Kantono Ashland, Viskonsino
Estonian:
Ashlandi maakond, Wisconsin, Ameerika Ühendriigid
Farsi/Persian:
Ψ΄Ω‡Ψ±Ψ³ΨͺΨ§Ω† Ψ§Ψ΄Ω„Ω†Ψ―ΨŒ ΩˆΫŒΨ³Ϊ©Ψ§Ω†Ψ³ΫŒΩ†, ΩˆΫŒΨ³Ϊ©Ψ§Ω†Ψ³ΫŒΩ†, Ψ§ΫŒΨ§Ω„Ψ§Ψͺ Ω…ΨͺΨ­Ψ―Ω‡ Ψ’Ω…Ψ±ΫŒΪ©Ψ§
Hungarian:
Ashland megye, Wisconsin, Amerikai Egyesült Államok
Japanese:
γ‚’γ‚·γƒ₯ランド郑, γ‚¦γ‚£γ‚Ήγ‚³γƒ³γ‚·γƒ³ε·ž, をパγƒͺγ‚«εˆθ‘†ε›½
Latin:
Ashland Comitatus, Visconsinia, Civitates Foederatae Americae
Low Saxon/Low German:
Ashland County, Wisconsin, USA
Min Dong Chinese:
Ashland GΓ΄ng, Wisconsin
Minnan / Hokkien-Taiwanese:
Ashland KΕ«n
Norwegian:
Ashland County, Wisconsin, USA
Polish:
Hrabstwo Ashland, Wisconsin, Stany Zjednoczone
Portuguese:
Condado de Ashland, Wisconsin, Estados Unidos
Romanian:
Comitatul Ashland, Wisconsin, Statele Unite ale Americii
Sardinian:
contea de Ashland, Wisconsin, Istados Unidos de Amèrica
Serbian:
ΠžΠΊΡ€ΡƒΠ³ Π•ΡˆΠ»Π°Π½Π΄ , Висконсин, БјСдињСнС АмСричкС Π”Ρ€ΠΆΠ°Π²Π΅
Serbo-Croatian:
Ashland County, Wisconsin, Sjedinjene Američke Države
Swedish:
Ashland County, Wisconsin, USA
Traditional Chinese:
ι˜Ώδ»€θ˜­ηΈ£, ε¨ζ–―εΊ·θΎ›ε·ž, ηΎŽεœ‹
Turkish:
Ashland ilçesi, Wisconsin, Amerika Birleşik Devletleri
Ukrainian:
Π•ΡˆΠ»Π΅Π½Π΄, Вісконсин, Π‘ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ– Π¨Ρ‚Π°Ρ‚ΠΈ АмСрики
Urdu:
Ψ§ΫŒΨ΄Ω„Ω†Ϊˆ Ϊ©Ψ§Ψ€Ω†ΩΉΫŒΨŒ ΩˆΨ³Ϊ©ΩˆΩ†Ψ³Ω†, ΩˆΨ³Ϊ©ΩˆΩ†Ψ³Ω†, ریاسΨͺہائے Ω…Ψͺحدہ Ψ§Ω…Ψ±ΫŒΪ©Ψ§
Vietnamese:
QuαΊ­n Ashland, Wisconsin, Chủng Quα»‘c Hoa Kα»³
Waray:
Condado han Ashland, Wisconsin, Estados Unidos


Ashland County’s bedrock is dominated by a 35 km. thick sequence of Precambrian rocks tilted steeply by thrusting along the Marenisco Fault. These Precambrian rocks occur in NE striking belts, with the oldest at the southern edge of the county. The oldest rocks in the section are poorly exposed Archean meta-volcanic and meta-sedimentary rocks. These are overlain by a thick section of Proterozoic sedimentary rocks, including the Ironwood Iron Formation, which was the main formation extensively mined in the Gogebic Iron Range. These are overlain by a thick section of 1.1 billion year old (Keweenawan) volcanic rocks (Powder Mill Group and Portage Lake Lava Series) from the Mid-Continent Rift. These are intruded by the complexly differentiated Keweenawan–age plutons of the Mellen Complex. On top of these is a package of Proterozoic sedimentary rocks (Oronto Group) which further filled the rift after the cessation of volcanism. The youngest bedrock, separated from the older rocks by another large thrust fault, the Douglas Fault, is the little metamorphosed Proterozoic Bayfield Group sandstones.

The Keweenawan volcanic rocks are well exposed along the gorge in Copper Falls State Park. The Mellen igneous complex is seen in quarries and outcrops around Mellen, Wisconsin. The dark-colored anorthosites and gabbros of the pluton are quarried and marketed as β€œblack granite”. The plutons also contain red granites that are quarried near Highbridge. The Ironwood Iron Formation and associated sediments are exposed on the ridges along Mt. Wittlesey. Recently (2013) a mining company is proposing to open a large open-pit iron mine in the Mellen area, exploiting these rocks.

The Bayfield Group is elegantly exposed on the Apostle Islands. They were formerly extensively quarried as building stone. The Apostle Islands are largely protected as a National Lakeshore. The islands are often fronted by wave-carved sandstone cliffs popular with tourists. They are most approachable in Big Bay State Park on Madeline Island.

Glacial drift and glacial lake sediments cover a lot of the county. The coarse tills and outwash can yield interesting minerals such as β€œdrift” copper and Lake Superior agates.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

42 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Almandine
Formula: Fe2+3Al2(SiO4)3
β“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜ Andalusite
Formula: Al2(SiO4)O
β“˜ Andalusite var. Chiastolite
Formula: Al2(SiO4)O
β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
β“˜ Anorthite
Formula: Ca(Al2Si2O8)
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Localities: Reported from at least 8 localities in this region.
References:
www.uwrf.edu/~wc01
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Localities: Reported from at least 6 localities in this region.
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜ Chamosite var. Thuringite
Formula: (Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
β“˜ 'Chlorite Group'
β“˜ 'Clinopyroxene Subgroup'
β“˜ Copper
Formula: Cu
β“˜ Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
β“˜ Cubanite
Formula: CuFe2S3
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Enstatite
Formula: Mg2Si2O6
β“˜ Fayalite
Formula: Fe2+2SiO4
References:
www.uwrf.edu/~wc01
β“˜ 'Fayalite-Forsterite Series'
β“˜ 'Feldspar Group'
β“˜ Forsterite
Formula: Mg2SiO4
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Grunerite
Formula: ◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Localities: Reported from at least 6 localities in this region.
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Hematite
Formula: Fe2O3
Localities: Reported from at least 6 localities in this region.
β“˜ Hematite var. Kidney Ore
Formula: Fe2O3
Locality: Ashland, Ashland County, Wisconsin, USA - erroneously reported
β“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜ 'Hypersthene'
Formula: (Mg,Fe)SiO3
β“˜ Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 6 localities in this region.
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
β“˜ 'K Feldspar'
β“˜ Kyanite
Formula: Al2(SiO4)O
β“˜ Laumontite
Formula: CaAl2Si4O12 · 4H2O
β“˜ 'Limonite'
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 15 localities in this region.
References:
www.uwrf.edu/~wc01
β“˜ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Marcasite
Formula: FeS2
β“˜ 'Mica Group'
β“˜ Minnesotaite
Formula: Fe2+3Si4O10(OH)2
β“˜ Molybdenite
Formula: MoS2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Nickeline
Formula: NiAs
β“˜ Orthoclase
Formula: K(AlSi3O8)
β“˜ 'Orthopyroxene Subgroup'
Localities: Reported from at least 6 localities in this region.
References:
www.uwrf.edu/~wc01
β“˜ Pentlandite
Formula: (NixFey)Ξ£9S8
β“˜ Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
References:
www.uwrf.edu/~wc01
β“˜ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Localities: Reported from at least 10 localities in this region.
β“˜ Pyrite
Formula: FeS2
β“˜ 'Pyroxene Group'
Formula: ADSi2O6
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
β“˜ Quartz var. Chalcedony
Formula: SiO2
β“˜ Quartz var. Jasper
β“˜ Quartz var. Lake Superior Agate
Formula: SiO2
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ Siderite
Formula: FeCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
β“˜ Talc
Formula: Mg3Si4O10(OH)2
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
β“˜Bornite2.BA.15Cu5FeS4
β“˜Pentlandite2.BB.15(NixFey)Ξ£9S8
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Cubanite2.CB.55aCuFe2S3
β“˜Nickeline2.CC.05NiAs
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜var. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
β“˜Hematite
var. Kidney Ore ?		4.CB.05Fe2O3
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz
var. Lake Superior Agate		4.DA.05SiO2
β“˜var. Chalcedony4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜var. Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
Group 9 - Silicates
β“˜Fayalite9.AC.05Fe2+2SiO4
β“˜Forsterite9.AC.05Mg2SiO4
β“˜Almandine9.AD.25Fe2+3Al2(SiO4)3
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Andalusite
var. Chiastolite		9.AF.10Al2(SiO4)O
β“˜9.AF.10Al2(SiO4)O
β“˜Kyanite9.AF.15Al2(SiO4)O
β“˜Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
β“˜Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
β“˜Enstatite9.DA.05Mg2Si2O6
β“˜Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Grunerite9.DE.05β—»{Fe2+2}{Fe2+5}(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Minnesotaite9.EC.05Fe2+3Si4O10(OH)2
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Chamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜var. Thuringite9.EC.55(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
β“˜Orthoclase9.FA.30K(AlSi3O8)
β“˜Anorthite9.FA.35Ca(Al2Si2O8)
β“˜Laumontite9.GB.10CaAl2Si4O12 Β· 4H2O
Unclassified
β“˜'Pyroxene Group'-ADSi2O6
β“˜'K Feldspar'-
β“˜'Orthopyroxene Subgroup'-
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
β“˜'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Hornblende Root Name Group'-β—»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
β“˜'Fayalite-Forsterite Series'-
β“˜'Clinopyroxene Subgroup'-
β“˜'Mica Group'-
β“˜'Chlorite Group'-
β“˜'Feldspar Group'-
β“˜'Hypersthene'-(Mg,Fe)SiO3
β“˜'Limonite'-
β“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ MinnesotaiteFe32+Si4O10(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ StauroliteFe22+Al9Si4O23(OH)
Hβ“˜ TalcMg3Si4O10(OH)2
Hβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Hβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ AndalusiteAl2(SiO4)O
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ AnorthiteCa(Al2Si2O8)
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ AlmandineFe32+Al2(SiO4)3
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ Quartz var. ChalcedonySiO2
Oβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oβ“˜ Andalusite var. ChiastoliteAl2(SiO4)O
Oβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ EnstatiteMg2Si2O6
Oβ“˜ FayaliteFe22+SiO4
Oβ“˜ ForsteriteMg2SiO4
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ HematiteFe2O3
Oβ“˜ Hypersthene(Mg,Fe)SiO3
Oβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ KyaniteAl2(SiO4)O
Oβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MinnesotaiteFe32+Si4O10(OH)2
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ OrthoclaseK(AlSi3O8)
Oβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ QuartzSiO2
Oβ“˜ SideriteFeCO3
Oβ“˜ StauroliteFe22+Al9Si4O23(OH)
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Oβ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Hematite var. Kidney OreFe2O3
Oβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ Quartz var. Lake Superior AgateSiO2
Oβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oβ“˜ Pyroxene GroupADSi2O6
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ EnstatiteMg2Si2O6
Mgβ“˜ ForsteriteMg2SiO4
Mgβ“˜ Hypersthene(Mg,Fe)SiO3
Mgβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ TalcMg3Si4O10(OH)2
Mgβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
AlAluminium
Alβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ AndalusiteAl2(SiO4)O
Alβ“˜ AnorthiteCa(Al2Si2O8)
Alβ“˜ AlmandineFe32+Al2(SiO4)3
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alβ“˜ Andalusite var. ChiastoliteAl2(SiO4)O
Alβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Alβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
Alβ“˜ KyaniteAl2(SiO4)O
Alβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ OrthoclaseK(AlSi3O8)
Alβ“˜ StauroliteFe22+Al9Si4O23(OH)
Alβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Alβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ AndalusiteAl2(SiO4)O
Siβ“˜ AnorthiteCa(Al2Si2O8)
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ AlmandineFe32+Al2(SiO4)3
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ Quartz var. ChalcedonySiO2
Siβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siβ“˜ Andalusite var. ChiastoliteAl2(SiO4)O
Siβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Siβ“˜ EnstatiteMg2Si2O6
Siβ“˜ FayaliteFe22+SiO4
Siβ“˜ ForsteriteMg2SiO4
Siβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Siβ“˜ Hypersthene(Mg,Fe)SiO3
Siβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ KyaniteAl2(SiO4)O
Siβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Siβ“˜ MinnesotaiteFe32+Si4O10(OH)2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ OrthoclaseK(AlSi3O8)
Siβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ QuartzSiO2
Siβ“˜ StauroliteFe22+Al9Si4O23(OH)
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siβ“˜ Quartz var. Lake Superior AgateSiO2
Siβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siβ“˜ Pyroxene GroupADSi2O6
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
PPhosphorus
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ BorniteCu5FeS4
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ CubaniteCuFe2S3
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ MarcasiteFeS2
Sβ“˜ MolybdeniteMoS2
Sβ“˜ Pentlandite(NixFey)Ξ£9S8
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SphaleriteZnS
ClChlorine
Clβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ OrthoclaseK(AlSi3O8)
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ AnorthiteCa(Al2Si2O8)
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ GypsumCaSO4 · 2H2O
Caβ“˜ LaumontiteCaAl2Si4O12 · 4H2O
Caβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caβ“˜ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ AlmandineFe32+Al2(SiO4)3
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feβ“˜ Cordierite(Mg,Fe)2Al3(AlSi5O18)
Feβ“˜ CubaniteCuFe2S3
Feβ“˜ FayaliteFe22+SiO4
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ Grunerite◻{Fe22+}{Fe52+}(Si8O22)(OH)2
Feβ“˜ HematiteFe2O3
Feβ“˜ Hypersthene(Mg,Fe)SiO3
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ MarcasiteFeS2
Feβ“˜ MinnesotaiteFe32+Si4O10(OH)2
Feβ“˜ Pentlandite(NixFey)Ξ£9S8
Feβ“˜ Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
Feβ“˜ SideriteFeCO3
Feβ“˜ StauroliteFe22+Al9Si4O23(OH)
Feβ“˜ Chamosite var. Thuringite(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Feβ“˜ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feβ“˜ Hematite var. Kidney OreFe2O3
NiNickel
Niβ“˜ NickelineNiAs
Niβ“˜ Pentlandite(NixFey)Ξ£9S8
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ CubaniteCuFe2S3
Cuβ“˜ CopperCu
Cuβ“˜ MalachiteCu2(CO3)(OH)2
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ NickelineNiAs
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
MoMolybdenum
Moβ“˜ MolybdeniteMoS2

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Ashland_County,_Wisconsin
Wikidata ID:Q494931
GeoNames ID:5244249

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Laybourn, D.P., 1979, Geology and Metamorphism of the Ironwood Iron Formation, Gogebic Range, Wi., Unpub. M.S. Thesis, U of M - Duluth, 223 p.
(n.d.)
Cannon, W.F., L.G. Woodruff, S.W. Nicholson & C.A. Hedgman (1996) Bedrock geologic map of the Ashland and the northern part of the Ironwood 30' x 60' Quadrangles, Wisconsin and Michigan: U.S. Geological Survey, Miscellaneous Investigations Series: Map I-2566, 1 sheet.
Nuhfer, Edward (2004) A guidebook to the geology of Lake Superior's Apostle Islands National Lakeshore: Eastern National Press, 141 p.
Cannon, W. , G. LaBerge, J. Klasner & K. Schulz (2007) The Gogebic Iron Range - a sample of the northern margin of the Penokean fold and thrust belt: U. S. Geological Survey Professional Paper 1730, 44 p. plus map.
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