SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Iron Co., Wisconsin, USAi
Regional Level Types
Iron Co.County
WisconsinState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Locality type:
Largest Settlements:
PlacePopulation
Hurley1,493 (2017)
Montreal783 (2017)
Mercer516 (2017)
Iron Belt173 (2017)
Pence131 (2017)
Other Languages:
French:
comté d'Iron, Wisconsin, États-Unis
German:
Iron County, Wisconsin, Vereinigte Staaten
Italian:
contea di Iron, Wisconsin, Stati Uniti d'America
Russian:
Айрон, Висконсин, Соединённые Штаты Америки
Simplified Chinese:
艾昂縣, 威斯康辛州, 美国
Spanish:
Condado de Iron, Wisconsin, Estados Unidos
Albanian:
Iron County, Wisconsin, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة أيرون, ويسكونسن, الولايات المتحدة
Basque:
Iron konderria , Wisconsin
Bavarian:
Iron County, Wisconsin, Vaoanigte Stootn
Bishnupriya Manipuri:
আইরন কাউন্টি, উইসকনসিন, তিলপারাষ্ট্র
Bulgarian:
Айрън, Уисконсин, Съединени американски щати
Cebuano:
Iron County, Wisconsin
Dutch:
Iron County, Wisconsin, Verenigde Staten
Farsi/Persian:
شهرستان آیرن، ویسکانسین, ویسکانسین, ایالات متحده آمریکا
Hungarian:
Iron megye, Wisconsin, Amerikai Egyesült Államok
Japanese:
アイアン郡, ウィスコンシン州, アメリカ合衆国
Latin:
Iron Comitatus, Visconsinia, Civitates Foederatae Americae
Low Saxon/Low German:
Iron County, Wisconsin, USA
Min Dong Chinese:
Iron Gông, Wisconsin
Minnan / Hokkien-Taiwanese:
Iron Kūn
Norwegian:
Iron County, Wisconsin, USA
Polish:
Hrabstwo Iron, Wisconsin, Stany Zjednoczone
Portuguese:
Condado de Iron, Wisconsin, Estados Unidos
Romanian:
Comitatul Iron, Wisconsin, Statele Unite ale Americii
Sardinian:
contea de Iron, Wisconsin, Istados Unidos de Amèrica
Serbian:
Iron County, Висконсин, Сједињене Америчке Државе
Serbo-Croatian:
Iron County, Wisconsin, Sjedinjene Američke Države
Swedish:
Iron County, Wisconsin, USA
Turkish:
Iron ilçesi, Wisconsin, Amerika Birleşik Devletleri
Ukrainian:
Айрон, Вісконсин, Сполучені Штати Америки
Urdu:
آئرن کاؤنٹی، وسکونسن, وسکونسن, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Iron, Wisconsin, Chủng Quốc Hoa Kỳ
Waray:
Condado han Iron, Wisconsin, Estados Unidos


Iron 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. These 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 locally quarried for road metal. The Ironwood Iron Formation hosted some important mines, notably the Montreal and Cary mines, which produced world class specimens of goethite, hematite, manganite, manganocalcite, barite and other minerals. These were underground mines, which worked the oxidized zones in the iron formation down dip to depths of over 4,000 feet. The mines closed in the 1960's, but there has been renewed exploration in the area (2013).

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

Select Mineral List Type

Standard Detailed Strunz Dana 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

48 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
'Albite-Anorthite Series'
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Robinson, G. & G. LaBerge (2013) Minerals of the Lake Superior Iron Ranges: A. E. Seaman Mineral Museum: Michigan Technological University, 52 p.
Aragonite
Formula: CaCO3
Reference: Mineralogy of Michigan (2004) Heinrich & Robinson
Baryte
Formula: BaSO4
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Calcite
Formula: CaCO3
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Celestine
Formula: SrSO4
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Reference: USGS, 1976.
'Chlorite Group'
'Clinopyroxene Subgroup'
Copper
Formula: Cu
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Corrensite
Formula: (Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Reference: Cordua, W. (2011) Geology of new exposures of the 1100 MA (Keweenawan) Kallander Creek Volcanics in Iron County, Wisconsin: Geological Society of America 2011 Annual Meeting Abstracts with Program: p. 93.
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Dickite
Formula: Al2(Si2O5)(OH)4
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Dolomite
Formula: CaMg(CO3)2
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fluorapatite
Formula: Ca5(PO4)3F
Reference: William S. Cordua
Galena
Formula: PbS
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Cannon, W.F. (2011) Field Trip #7, Geology of the Montreal River Monocline: Institute on Lake Superior Geology, 57th. Annual Meeting, Pt. 2, Field Trip Guidebook: 111-126.
Goethite
Formula: α-Fe3+O(OH)
Localities: Reported from at least 10 localities in this region.
Graphite
Formula: C
Description: Schist
Reference: Dutton, C. E., and Reta Bradley, 1970, Lithologic, Geophysical and Mineral Commodity Maps of Precambrian Rocks in Wisconsin, U. S. Geological Survey, Miscellaneous Geologic Investigation Map I-631, 15 p. and 6 sheets.
Greenalite
Formula: (Fe2+,Fe3+)2-3Si2O5(OH)4
Reference: USGS Bul.1460:96
Gypsum
Formula: CaSO4 · 2H2O
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Hematite
Formula: Fe2O3
Localities: Reported from at least 12 localities in this region.
Hematite var: Specularite
Formula: Fe2O3
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
'Hornblende'
Reference: Tabet, D. & J. Mangham (1978), The Geology of the Eastern Mellen Complex, Wisconsin: Geoscience Wisconsin: 3: 1-19. Klewin, K. (1987) Petrology and geochemistry of the Keweenawan Potato River Intrusion, northern Wisconsin: Ph.D. Thesis, Northern Illinois University, 357 p.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
'K Feldspar'
Reference: Cordua, W. (2011) Geology of new exposures of the 1100 MA (Keweenawan) Kallander Creek Volcanics in Iron County, Wisconsin: Geological Society of America 2011 Annual Meeting Abstracts with Program: p. 93.
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Cordua, W. (2011) Geology of new exposures of the 1100 MA (Keweenawan) Kallander Creek Volcanics in Iron County, Wisconsin: Geological Society of America 2011 Annual Meeting Abstracts with Program: p. 93.
Kutnohorite
Formula: CaMn2+(CO3)2
Reference: Robinson, G. & G. LaBerge (2013) Minerals of the Lake Superior Iron Ranges: A. E. Seaman Mineral Museum: Michigan Technological University, 52 p.
Kyanite
Formula: Al2(SiO4)O
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Magnetite
Formula: Fe2+Fe3+2O4
Manganite
Formula: Mn3+O(OH)
Marcasite
Formula: FeS2
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Minnesotaite
Formula: Fe2+3Si4O10(OH)2
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Natrolite
Formula: Na2Al2Si3O10 · 2H2O
Reference: William S. Cordua collection
'Needle-ore'
Reference: Tony Nickischer
Neotocite
Formula: (Mn,Fe,Mg)SiO3 · H2O
Reference: Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399; Bernard J.H. and Hyrsl J. (2004) Minerals and their Localities.
'Orthopyroxene Subgroup'
Reference: Tabet, D. & J. Mangham (1978), The Geology of the Eastern Mellen Complex, Wisconsin: Geoscience Wisconsin: 3: 1-19. Klewin, K. (1987) Petrology and geochemistry of the Keweenawan Potato River Intrusion, northern Wisconsin: Ph.D. Thesis, Northern Illinois University, 357 p.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Cannon, W.F. (1996) Field Trip #2, Geology of the Montreal River Monocline: A Traverse through 25 km. of the Crust: Institute on Lake Superior Geology, 42nd. Annual Meeting, Proceedings, Pt. 3, Field Trip Guidebook: 49-63.
'Psilomelane'
Formula: Mn, O
Reference: Robinson, G. & G. LaBerge (2013) Minerals of the Lake Superior Iron Ranges: A. E. Seaman Mineral Museum: Michigan Technological University, 52 p.
Pyrite
Formula: FeS2
Pyrolusite
Formula: Mn4+O2
Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Quartz var: Agate
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Quartz var: Chalcedony
Formula: SiO2
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Quartz var: Jasper
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Rhodochrosite
Formula: MnCO3
Romanèchite
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
Reference: La Berge, G. (1984) The Geologic History of Wisconsin: Rocks and Minerals 59 (2), 60-73.
Siderite
Formula: FeCO3
Sillimanite
Formula: Al2(SiO4)O
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Stilpnomelane
Formula: (K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Talc
Formula: Mg3Si4O10(OH)2
Reference: La Berge, G. (1984) The Geologic History of Wisconsin: Rocks and Minerals 59 (2), 60-73.
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
Reference: Cannon, W.F. (1996) Field Trip #2, Geology of the Montreal River Monocline: A Traverse through 25 km. of the Crust: Institute on Lake Superior Geology, 42nd. Annual Meeting, Proceedings, Pt. 3, Field Trip Guidebook: 49-63.
Vanadinite ?
Formula: Pb5(VO4)3Cl
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Wollastonite
Formula: CaSiO3
Reference: Cannon, W.F., 1996, "Field Trip #2, Geology of the Montreal River Monocline: A Traverse through 25 km. of the Crust", Institute on Lake Superior Geology, 42nd. Annual Meeting, Proceedings, Pt. 3, Field Trip Guidebook, p. 49-63.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Hollandite4.DK.05aBa(Mn4+6Mn3+2)O16
Magnetite4.BB.05Fe2+Fe3+2O4
Manganite4.FD.15Mn3+O(OH)
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Romanèchite4.DK.10(Ba,H2O)2(Mn4+,Mn3+)5O10
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
var: Manganoan Calcite5.AB.05(Ca,Mn)CO3
Dolomite5.AB.10CaMg(CO3)2
Kutnohorite5.AB.10CaMn2+(CO3)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Celestine7.AD.35SrSO4
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Vanadinite ?8.BN.05Pb5(VO4)3Cl
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Almandine9.AD.25Fe2+3Al2(SiO4)3
Analcime9.GB.05Na(AlSi2O6) · H2O
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
Chamosite9.EC.55(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Corrensite9.EC.60(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Dickite9.ED.05Al2(Si2O5)(OH)4
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Greenalite9.ED.15(Fe2+,Fe3+)2-3Si2O5(OH)4
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Kyanite9.AF.15Al2(SiO4)O
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Minnesotaite9.EC.05Fe2+3Si4O10(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Neotocite9.ED.20(Mn,Fe,Mg)SiO3 · H2O
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Sillimanite9.AF.05Al2(SiO4)O
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Stilpnomelane9.EG.40(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Talc9.EC.05Mg3Si4O10(OH)2
Thomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
Wollastonite9.DG.05CaSiO3
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Chlorite Group'-
'Clinopyroxene Subgroup'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Needle-ore'-
'Orthopyroxene Subgroup'-
'Psilomelane'-Mn, O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
(AB)2X3
Braunite7.5.1.3Mn2+Mn3+6(SiO4)O8
AB8X16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Hollandite7.9.1.1Ba(Mn4+6Mn3+2)O16
Romanèchite7.9.2.1(Ba,H2O)2(Mn4+,Mn3+)5O10
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Kutnohorite14.2.1.3CaMn2+(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Celestine28.3.1.2SrSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Vanadinite ?41.8.4.3Pb5(VO4)3Cl
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Kyanite52.2.2c.1Al2(SiO4)O
Sillimanite52.2.2a.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Dickite71.1.1.1Al2(Si2O5)(OH)4
Greenalite71.1.2b.4(Fe2+,Fe3+)2-3Si2O5(OH)4
Neotocite71.1.5.4(Mn,Fe,Mg)SiO3 · H2O
Sheets of 6-membered rings with 2:1 layers
Minnesotaite71.2.1.5Fe2+3Si4O10(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Chamosite71.4.1.7(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Corrensite71.4.2.5(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined islands
Stilpnomelane74.1.1.1(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Albite-Anorthite Series'-
Aragonite-CaCO3
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Calcite
var: Manganoan Calcite
-(Ca,Mn)CO3
'Chlorite Group'-
'Clinopyroxene Subgroup'-
'Garnet Group'-X3Z2(SiO4)3
Gypsum
var: Selenite
-CaSO4 · 2H2O
Hematite
var: Specularite
-Fe2O3
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
'Needle-ore'-
'Orthopyroxene Subgroup'-
'Psilomelane'-Mn, O
Quartz
var: Agate
-SiO2
var: Chalcedony-SiO2
var: Jasper-SiO2
Thomsonite-Ca-NaCa2[Al5Si5O20] · 6H2O

List of minerals for each chemical element

HHydrogen
H Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
H Goethiteα-Fe3+O(OH)
H ManganiteMn3+O(OH)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H DickiteAl2(Si2O5)(OH)4
H GypsumCaSO4 · 2H2O
H KaoliniteAl2(Si2O5)(OH)4
H MinnesotaiteFe32+Si4O10(OH)2
H Neotocite(Mn,Fe,Mg)SiO3 · H2O
H Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
H TalcMg3Si4O10(OH)2
H Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
H Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H StauroliteFe22+Al9Si4O23(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H PrehniteCa2Al2Si3O10(OH)2
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H Gypsum (var: Selenite)CaSO4 · 2H2O
H Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
H AnalcimeNa(AlSi2O6) · H2O
H NatroliteNa2Al2Si3O10 · 2H2O
CCarbon
C CalciteCaCO3
C RhodochrositeMnCO3
C Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
C DolomiteCaMg(CO3)2
C SideriteFeCO3
C GraphiteC
C AragoniteCaCO3
C KutnohoriteCaMn2+(CO3)2
OOxygen
O HematiteFe2O3
O BaryteBaSO4
O CalciteCaCO3
O Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
O Goethiteα-Fe3+O(OH)
O ManganiteMn3+O(OH)
O RhodochrositeMnCO3
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O BrauniteMn2+Mn63+(SiO4)O8
O Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
O CelestineSrSO4
O DickiteAl2(Si2O5)(OH)4
O DolomiteCaMg(CO3)2
O GypsumCaSO4 · 2H2O
O KaoliniteAl2(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
O MinnesotaiteFe32+Si4O10(OH)2
O Neotocite(Mn,Fe,Mg)SiO3 · H2O
O PyrolusiteMn4+O2
O QuartzSiO2
O SideriteFeCO3
O Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
O TalcMg3Si4O10(OH)2
O Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
O Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
O WollastoniteCaSiO3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O AlmandineFe32+Al2(SiO4)3
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O KyaniteAl2(SiO4)O
O MuscoviteKAl2(AlSi3O10)(OH)2
O SillimaniteAl2(SiO4)O
O StauroliteFe22+Al9Si4O23(OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O PrehniteCa2Al2Si3O10(OH)2
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O Hematite (var: Specularite)Fe2O3
O Gypsum (var: Selenite)CaSO4 · 2H2O
O AragoniteCaCO3
O Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
O K Feldspar (var: Adularia)KAlSi3O8
O CryptomelaneK(Mn74+Mn3+)O16
O HollanditeBa(Mn64+Mn23+)O16
O PsilomelaneMn, O
O AnalcimeNa(AlSi2O6) · H2O
O KutnohoriteCaMn2+(CO3)2
O NatroliteNa2Al2Si3O10 · 2H2O
O Quartz (var: Chalcedony)SiO2
O FluorapatiteCa5(PO4)3F
O Garnet GroupX3Z2(SiO4)3
O VanadinitePb5(VO4)3Cl
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F FluorapatiteCa5(PO4)3F
NaSodium
Na Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Na AnalcimeNa(AlSi2O6) · H2O
Na NatroliteNa2Al2Si3O10 · 2H2O
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg DolomiteCaMg(CO3)2
Mg Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mg Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Mg TalcMg3Si4O10(OH)2
Mg Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
AlAluminium
Al DickiteAl2(Si2O5)(OH)4
Al KaoliniteAl2(Si2O5)(OH)4
Al Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Al Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al AlmandineFe32+Al2(SiO4)3
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al KyaniteAl2(SiO4)O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SillimaniteAl2(SiO4)O
Al StauroliteFe22+Al9Si4O23(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Al K Feldspar (var: Adularia)KAlSi3O8
Al AnalcimeNa(AlSi2O6) · H2O
Al NatroliteNa2Al2Si3O10 · 2H2O
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si BrauniteMn2+Mn63+(SiO4)O8
Si DickiteAl2(Si2O5)(OH)4
Si KaoliniteAl2(Si2O5)(OH)4
Si MinnesotaiteFe32+Si4O10(OH)2
Si Neotocite(Mn,Fe,Mg)SiO3 · H2O
Si QuartzSiO2
Si Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Si TalcMg3Si4O10(OH)2
Si Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Si Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Si WollastoniteCaSiO3
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si AlmandineFe32+Al2(SiO4)3
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si KyaniteAl2(SiO4)O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si SillimaniteAl2(SiO4)O
Si StauroliteFe22+Al9Si4O23(OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si PrehniteCa2Al2Si3O10(OH)2
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Si K Feldspar (var: Adularia)KAlSi3O8
Si AnalcimeNa(AlSi2O6) · H2O
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Quartz (var: Chalcedony)SiO2
Si Garnet GroupX3Z2(SiO4)3
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S BaryteBaSO4
S CelestineSrSO4
S GalenaPbS
S GypsumCaSO4 · 2H2O
S MarcasiteFeS2
S PyriteFeS2
S Gypsum (var: Selenite)CaSO4 · 2H2O
ClChlorine
Cl VanadinitePb5(VO4)3Cl
KPotassium
K Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
K K Feldspar (var: Adularia)KAlSi3O8
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca CalciteCaCO3
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
Ca DolomiteCaMg(CO3)2
Ca GypsumCaSO4 · 2H2O
Ca Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Ca WollastoniteCaSiO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
Ca AragoniteCaCO3
Ca Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
Ca KutnohoriteCaMn2+(CO3)2
Ca FluorapatiteCa5(PO4)3F
VVanadium
V VanadinitePb5(VO4)3Cl
MnManganese
Mn Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
Mn ManganiteMn3+O(OH)
Mn RhodochrositeMnCO3
Mn BrauniteMn2+Mn63+(SiO4)O8
Mn Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
Mn Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mn PyrolusiteMn4+O2
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn HollanditeBa(Mn64+Mn23+)O16
Mn PsilomelaneMn, O
Mn KutnohoriteCaMn2+(CO3)2
FeIron
Fe HematiteFe2O3
Fe Goethiteα-Fe3+O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe MinnesotaiteFe32+Si4O10(OH)2
Fe Neotocite(Mn,Fe,Mg)SiO3 · H2O
Fe PyriteFeS2
Fe SideriteFeCO3
Fe Stilpnomelane(K,Ca,Na)(Fe2+,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Fe Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Fe Greenalite(Fe2+,Fe3+)2-3Si2O5(OH)4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe AlmandineFe32+Al2(SiO4)3
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe StauroliteFe22+Al9Si4O23(OH)
Fe Hematite (var: Specularite)Fe2O3
Fe Corrensite(Mg,Fe)9((Si,Al)8O20)(OH)10 · nH2O
CuCopper
Cu CopperCu
SrStrontium
Sr CelestineSrSO4
BaBarium
Ba BaryteBaSO4
Ba Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
Ba HollanditeBa(Mn64+Mn23+)O16
PbLead
Pb GalenaPbS
Pb VanadinitePb5(VO4)3Cl

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
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.
Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399
Dott, R.H. & J.W. Attig (2004) Roadside Geology of Wisconsin, Mountain Press Publishing Company, 346 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.
Robinson, G. & G. LaBerge (2013) Minerals of the Lake Superior Iron Ranges: A. E. Seaman Mineral Museum: Michigan Technological University, 52 p.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Iron_County,_Wisconsin
Wikidata ID:Q52250
GeoNames ID:5257533

External Links

Wisconsin Mineral index - Wisconsin Geological and Natural History Survey http://wgnhs.uwex.edu/wisconsin-geology/minerals-wisconsin/

Localities in this Region

Other Regions, Features and Areas that Intersect

North America PlateTectonic Plate

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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 16, 2019 07:56:11 Page generated: October 30, 2019 02:01:14
Go to top of page