Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced 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 MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Hematite from
Sauk Mine, North Freedom, Sauk County, Wisconsin, USA


Locality type:Mine
Classification
Species:Hematite
Formula:Fe2O3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hematite data
Locality Data:Click here to view Sauk Mine, North Freedom, Sauk County, Wisconsin, USA
Data Identifiers
Mindat Occurrence Record ID:917908
Long-form Identifier:1:3:917908:0
GUID (UUID V4):0
Nearest other occurrences of Hematite
1.7km (1.1 miles) ⓘIllinois Mine, North Freedom, Sauk County, Wisconsin, USA
3.1km (1.9 miles) ⓘDrill hole, North Freedom, Sauk County, Wisconsin, USA
5.5km (3.4 miles) ⓘMartin Marietta Aggregates Rock Springs Quarry, Rock Springs, Sauk County, Wisconsin, USA
7.0km (4.3 miles) ⓘBaxter's Hollow, Sumpter, Sauk County, Wisconsin, USA
9.8km (6.1 miles) ⓘCahoon Mine, Baraboo, Sauk County, Wisconsin, USA
17.9km (11.1 miles) ⓘJessie Quarry, Baraboo, Sauk County, Wisconsin, USA
20.2km (12.5 miles) ⓘBaraboo Quartzite Company; Inc. (Baraboo Quarry), Baraboo, Sauk County, Wisconsin, USA
24.4km (15.1 miles) ⓘWilliams Quarry, Columbia County, Wisconsin, USA
24.5km (15.2 miles) ⓘHagerman hill, Sauk County, Wisconsin, USA
66.4km (41.2 miles) ⓘNecedah Bluff quarry, Juneau County, Wisconsin, USA
References
Weidman, S. (1904) The Baraboo Iron-Bearing District of Wisconsin: Wisconsin Geological and Natural History Survey Economic Series 8 Bulletin XIII, 190 p. plus map.
 
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: September 6, 2026 02:46:38
Go to top of page