Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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
Del Norte Thunder Egg beds, Saguache County, Colorado, USA


Locality type:Beds
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Del Norte Thunder Egg beds, Saguache County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:228237
Long-form Identifier:1:3:228237:4
GUID (UUID V4):0
Nearest other occurrences of Magnetite
23.8km (14.8 miles) ⓘBuckhorn Mine (Adelia; Baltic; Oceanic; Buckhorn; Atlantic; Queen of Sheba; Celtic; Adriatic), Crystal Hill Mining District, Saguache County, Colorado, USA
24.0km (14.9 miles) ⓘEsperanza Mine (Valardena; Esperanza; Jesus Marie), Crystal Hill Mining District, Saguache County, Colorado, USA
40.1km (24.9 miles) ⓘAztec Mine, Summitville Mine, Summitville, Rio Grande County, Colorado, USA
48.9km (30.4 miles) ⓘEquity Mine, Creede Mining District, Mineral County, Colorado, USA
68.7km (42.7 miles) ⓘUnnamed pegmatite, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA
69.0km (42.9 miles) ⓘVilla Grove Turquoise Mine, Bonanza Mining District (Kerber Creek Mining District; Blake Mining District), Saguache County, Colorado, USA
72.1km (44.8 miles) ⓘThorium Prospect (MRDS - 10087970), White Earth Mining District (Powderhorn Mining District), Gunnison County, Colorado, USA
72.1km (44.8 miles) ⓘThorium Prospects (MRDS - 10014573), White Earth Mining District (Powderhorn Mining District), Gunnison County, Colorado, USA
73.2km (45.5 miles) ⓘThorium Prospect (MRDS - 10087969), White Earth Mining District (Powderhorn Mining District), Gunnison County, Colorado, USA
73.3km (45.6 miles) ⓘThorium Prospect (MRDS - 10014571), White Earth Mining District (Powderhorn Mining District), Gunnison County, Colorado, USA
References
Rocks & Minerals (July-August, 2002)
 
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 3, 2026 12:45:46
Go to top of page