Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

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

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
06293890017272052536740.jpg
Cahoon Mine

Cahoon Mine, Baraboo, Sauk County, Wisconsin, USA
08966280017272055848533.jpg
Iron Mine (1903)

North Freedom, Sauk County, Wisconsin, USA
08583080017272052539878.jpg
Ripple-marked Baraboo Quartzite

Devil's Lake State Park, Baraboo, Sauk County, Wisconsin, USA
06293890017272052536740.jpg
Cahoon Mine

Cahoon Mine, Baraboo, Sauk County, Wisconsin, USA
08966280017272055848533.jpg
Iron Mine (1903)

North Freedom, Sauk County, Wisconsin, USA
08583080017272052539878.jpg
Ripple-marked Baraboo Quartzite

Devil's Lake State Park, Baraboo, Sauk County, Wisconsin, USA
06293890017272052536740.jpg
Cahoon Mine

Cahoon Mine, Baraboo, Sauk County, Wisconsin, USA
08966280017272055848533.jpg
Iron Mine (1903)

North Freedom, Sauk County, Wisconsin, USA
Neighbouring regions:
Iowa County, Wisconsin, USA
Columbia County, Wisconsin, USA
Richland County, Wisconsin, USA
Juneau County, Wisconsin, USA
Dane County, Wisconsin, USA
Vernon County, Wisconsin, USA
Adams County, Wisconsin, USA
Type:
County
Largest Settlements:
PlacePopulation
Baraboo12,155 (2017)
Reedsburg9,548 (2017)
Prairie du Sac4,255 (2017)
Sauk City3,489 (2017)
Lake Delton2,967 (2017)
Spring Green1,648 (2017)
Mindat Locality ID:
25696
Long-form identifier:
mindat:1:2:25696:7
GUID (UUID V4):
0
Other Languages:
View 29 more...
French:
comté de Sauk, Wisconsin, États-Unis
German:
Sauk County, Wisconsin, Vereinigte Staaten
Italian:
contea di Sauk, Wisconsin, Stati Uniti d'America
Russian:
Сок, Висконсин, Соединённые Штаты Америки
Simplified Chinese:
索克县, 威斯康辛州, 美国
Spanish:
Sauk, Wisconsin, Estados Unidos
Albanian:
Sauk County, Wisconsin, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة سوك, ويسكونسن, الولايات المتحدة
Basque:
Sauk konderria , Wisconsin
Bavarian:
Sauk County, Wisconsin, Vaoanigte Stootn
Bishnupriya Manipuri:
সৌক কাউন্টি, উইসকনসিন, তিলপারাষ্ট্র
Bulgarian:
Сок, Уисконсин, Съединени американски щати
Cebuano:
Sauk County, Wisconsin
Dutch:
Sauk County, Wisconsin, Verenigde Staten
Farsi/Persian:
شهرستان ساوک، ویسکانسین, ویسکانسین, ایالات متحده آمریکا
Hungarian:
Sauk megye, Wisconsin, Amerikai Egyesült Államok
Japanese:
ソーク郡, ウィスコンシン州, アメリカ合衆国
Latin:
Sauk Comitatus, Visconsinia, Civitates Foederatae Americae
Low Saxon/Low German:
Sauk County, Wisconsin, USA
Min Dong Chinese:
Sauk Gông, Wisconsin
Minnan / Hokkien-Taiwanese:
Sauk Kūn
Norwegian:
Sauk County, Wisconsin, USA
Polish:
Hrabstwo Sauk, Wisconsin, Stany Zjednoczone
Portuguese:
Condado de Sauk, Wisconsin, Estados Unidos
Romanian:
Comitatul Sauk, Wisconsin, Statele Unite ale Americii
Sardinian:
contea de Sauk, Wisconsin, Istados Unidos de Amèrica
Serbian:
Округ Сок , Висконсин, Сједињене Америчке Државе
Serbo-Croatian:
Sauk County, Wisconsin, Sjedinjene Američke Države
Swedish:
Sauk County, Wisconsin, USA
Traditional Chinese:
索克縣 , 威斯康辛州, 美國
Turkish:
Sauk County, Wisconsin, Amerika Birleşik Devletleri
Ukrainian:
Сок, Вісконсин, Сполучені Штати Америки
Urdu:
ساوک کاؤنٹی، وسکونسن, وسکونسن, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Sauk, Wisconsin, Chủng Quốc Hoa Kỳ
Waray:
Condado han Sauk, Wisconsin, Estados Unidos


The oldest rocks in this county are the Proterozoic rocks of the Baraboo syncline, ranging from 1.75 billion year old granite and rhyolite, through the famous 1.65 billion year old Baraboo quartzite to a poorly exposed iron formation that was once mined. The quartzite stood as resistant bluffs, pounded by Cambrian storm waves. It is a classic area, with many outcrops visited by thousands of geologists and geology students because many basic principles of structural geology can be illustrated. Cambrian storm wave debris is also beautifully exposed in several places, most notably Parfery's Glen. Quartz crystals and hematite clusters are known where the quartzite is quarried for crushed and building stone.

Much of the county is underlain by Cambrian sandstone. These are well exposed along the Dells of the Wisconsin River, a popular tourist attraction. In thew western part of the county, hills are capped by Early Ordovician dolostones, which are also widely quarried, and can yield interesting specimens of drusy quartz, calcite, dolomite and goethite pseudomorphs after pyrite and marcasite. A few sulfide deposits fringing the Upper Mississippi Valley Zinc-Lead district are known.

On the eastern edge of the county, the Johnstown moraine covers the landscape. To the west, the landscape is carved into hills and glens (or "coulees") with significant bedrock outcrop. Gravel in the drift and along bars in the Wisconsin River and its tributaries can yield interesting transported materials such as float copper, granites and other glacial erratics.

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

28 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
ⓘ Anatase
Formula: TiO2
ⓘ 'Bastnäsite' ?
Formula: (Ce/Nd/Y/REE)(CO3)F
Description: Red, simple hexagonal prisms of LREE-Ca-carbonate, possibly bastnaesite.
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Dickite
Formula: Al2(Si2O5)(OH)4
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Euxenite-(Y) ?
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Description: Small grains of a Nb-Ta mineral with substantial U, Th, Ca, Fe, Ti and LREE might perhaps be an euxenite- or aeschynite-group mineral.
ⓘ 'Feldspar Group'
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fluorite
Formula: CaF2
ⓘ Foitite
Formula: ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
Localities: Reported from at least 12 localities in this region.
ⓘ 'K Feldspar'
ⓘ Lazulite
Formula: MgAl2(PO4)2(OH)2
Description: Vein of lazulite (contains significant nickel and cobalt) cutting through quartzite, on a talus slope above Devil's Lake, 10 km south of Baraboo.
ⓘ Magnesio-foitite
Formula: ◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Pseudorutile
Formula: Fe3+2Ti4+3O9
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrophyllite
Formula: Al2Si4O10(OH)2
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 10 localities in this region.
ⓘ Quartz var. Agate
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Quartz var. Lake Superior Agate
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Svanbergite
Formula: SrAl3(PO4)(SO4)(OH)6
ⓘ Thorite ?
Formula: Th(SiO4)
Description: Very tiny (0.005mm) grains of a Th-Fe-silicate might be thorite.
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
ⓘ Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘPseudorutile4.CB.25Fe3+2Ti4+3O9
ⓘQuartz
var. Agate		4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Lake Superior Agate4.DA.05SiO2
ⓘRutile4.DB.05TiO2
ⓘAnatase4.DD.05TiO2
ⓘEuxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘLazulite8.BB.40MgAl2(PO4)2(OH)2
ⓘSvanbergite8.BL.05SrAl3(PO4)(SO4)(OH)6
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘThorite ?9.AD.30Th(SiO4)
ⓘZircon9.AD.30Zr(SiO4)
ⓘFoitite9.CK.05◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘMagnesio-foitite9.CK.05◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘPyrophyllite9.EC.10Al2Si4O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘDickite9.ED.05Al2(Si2O5)(OH)4
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘvar. Cleavelandite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Bastnäsite' ?-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Feldspar Group'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'K Feldspar'-

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ DickiteAl2(Si2O5)(OH)4
Hⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ GoethiteFe3+O(OH)
Hⓘ LazuliteMgAl2(PO4)2(OH)2
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PyrophylliteAl2Si4O10(OH)2
Hⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
Hⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
BBoron
Bⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Bⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ Quartz var. AgateSiO2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnataseTiO2
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ DickiteAl2(Si2O5)(OH)4
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ GoethiteFe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ LazuliteMgAl2(PO4)2(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MicroclineK(AlSi3O8)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PseudorutileFe23+Ti34+O9
Oⓘ PyrophylliteAl2Si4O10(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SideriteFeCO3
Oⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
Oⓘ ThoriteTh(SiO4)
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ ZirconZr(SiO4)
Oⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Albite var. CleavelanditeNa(AlSi3O8)
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Quartz var. Lake Superior AgateSiO2
FFluorine
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ FluoriteCaF2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ LazuliteMgAl2(PO4)2(OH)2
Mgⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ DickiteAl2(Si2O5)(OH)4
Alⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ LazuliteMgAl2(PO4)2(OH)2
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ PyrophylliteAl2Si4O10(OH)2
Alⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
Alⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ Albite var. CleavelanditeNa(AlSi3O8)
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ Quartz var. AgateSiO2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ DickiteAl2(Si2O5)(OH)4
Siⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ PyrophylliteAl2Si4O10(OH)2
Siⓘ QuartzSiO2
Siⓘ ThoriteTh(SiO4)
Siⓘ ZirconZr(SiO4)
Siⓘ Magnesio-foitite◻(Mg2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Albite var. CleavelanditeNa(AlSi3O8)
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Quartz var. Lake Superior AgateSiO2
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ LazuliteMgAl2(PO4)2(OH)2
Pⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ PyriteFeS2
Sⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ FluoriteCaF2
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tiⓘ PseudorutileFe23+Ti34+O9
Tiⓘ RutileTiO2
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Foitite◻(Fe22+Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Feⓘ GoethiteFe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PseudorutileFe23+Ti34+O9
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ MalachiteCu2(CO3)(OH)2
SrStrontium
Srⓘ SvanbergiteSrAl3(PO4)(SO4)(OH)6
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Yⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
CeCerium
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Ceⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
TaTantalum
Taⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Thⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Thⓘ ThoriteTh(SiO4)
UUranium
Uⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Fossils

There are 3 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences3
Youngest Fossil Listed444 Ma (Silurian)
Oldest Fossil Listed501 Ma (Cambrian)
Stratigraphic Units
UnitNo. OccurrencesAge
Maquoketa - Fort Atkinson1449.5 - 443.7 Ma (Paleozoic)
Potsdam2501 - 485.4 Ma (Cambrian)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Bighornia
genus		Animalia : Cnidaria : Anthozoa : Streptelasmatidae : Bighornia449.5 - 443.7 Ma
Paleozoic
Schizopea primordialis
species		Animalia : Mollusca : Gastropoda : Sinuopeidae : Schizopea : Schizopea primordialis501 - 485.4 Ma
Cambrian
Sinuopea advena
species		Animalia : Mollusca : Gastropoda : Sinuopeidae : Sinuopea : Sinuopea advena501 - 485.4 Ma
Cambrian
Fossil LocalitiesClick to show 2 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Sauk_County,_Wisconsin
Wikidata ID:Q500933
GeoNames ID:5272232

Localities in this Region

USA
USA

Other Regions, Features and Areas that Intersect

North AmericaContinent
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.

References

Dalziel, I. W. D. & R. H. Dott, R. Jr. (1970) Geology of The Baraboo District, Wisconsin: Wisconsin Geological and Natural History Survey Information Circular 14: 164 p.
Clayton, L. (1990) Geology of Sauk County: Wisconsin Geological and Natural History Survey Information Circular 67: 68 p. with map.
Medaris, L. & J. Fournelle (1998) Svanbergite in the Baraboo Quartzite: significance for diagenetic processes and phosphorus flux in Precambrian ocean: Institute on Lake Superior Geology,:44th Annual Meeting: Pt. 1: Programs and Abstracts: p. 91-92.
wgnhs.uwex.edu (n.d.) http://wgnhs.uwex.edu/wisconsin-geology/minerals-wisconsin/
Davis, R.A., R. Dott and I. Dalziel, editors, (2016) Geology of the Baraboo, Wisconsin area, Geological Society of America Field Guide 43, 81 p.
Quick NavTopCommoditiesMineral ListRock TypesFossilsOther DatabasesLocalities in RegionOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 21, 2026 05:15:27 Page updated: July 26, 2026 11:47:01
Go to top of page