Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
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

Magnetite from
Cliff Mine, Allouez Township, Keweenaw County, Michigan, USA


Locality type:Mine
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Comments:Reported from dark greenstones in the mine area.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Cliff Mine, Allouez Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:782694
Long-form Identifier:1:3:782694:8
GUID (UUID V4):0
Nearest other occurrences of Magnetite
0.3km (0.2 miles) ⓘGreenstone flow, Allouez Township, Keweenaw County, Michigan, USA
13.3km (8.3 miles) ⓘKearsarge, Calumet Township, Houghton County, Michigan, USA
22.8km (14.2 miles) ⓘMount Bohemia, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
22.8km (14.2 miles) ⓘMount Bohemia Mine, Mount Bohemia, Lac La Belle, Grant Township, Keweenaw County, Michigan, USA
25.1km (15.6 miles) ⓘCopper Harbor Conglomerate, Hancock Township, Houghton County, Michigan, USA
36.6km (22.7 miles) ⓘIsle Royal Mines, Portage Township, Houghton County, Michigan, USA
44.1km (27.4 miles) ⓘJacobsville Sandstone, Torch Lake Township, Houghton County, Michigan, USA
60.8km (37.8 miles) ⓘHuron River Uranium prospect (MRDS - 10171055), Huron River, Baraga County, Michigan, USA
61.0km (37.9 miles) ⓘBughole exploration prospect, Baraga County, Michigan, USA
76.3km (47.4 miles) ⓘYellow Dog peridotite, Michigamme Township, Marquette County, Michigan, USA
References
Henwood, William Jory (1871) On the Native Copper of Lake Superior, in Observations of Metalliferous Deposits, and on Subterranean Temperature - Part the First. Transactions of the Royal Geological Society of Cornwall, 8 (1). 385-489
 
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 5, 2026 01:39:38
Go to top of page