Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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

Pyrolusite from
Tin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Tin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:137476
Long-form Identifier:1:3:137476:6
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
5.4km (3.3 miles) ⓘTip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
14.6km (9.1 miles) ⓘBull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA
25.1km (15.6 miles) ⓘCase Group, Unorganized mining district [1], Custer County, South Dakota, USA
27.2km (16.9 miles) ⓘC & N Group, Unorganized mining district [1], Custer County, South Dakota, USA
28.9km (18.0 miles) ⓘPeerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
29.1km (18.1 miles) ⓘJack Pot Group, Unorganized mining district [1], Custer County, South Dakota, USA
62.5km (38.9 miles) ⓘHoffman Iron Deposit Mine, Lead Mining District, Lawrence County, South Dakota, USA
63.5km (39.4 miles) ⓘWasp No. 2 Mine (Little Blue Mine), Yellow Creek area, Lawrence County, South Dakota, USA
65.6km (40.8 miles) ⓘComstock Mine (Yellow Jacket; S. R. Smith; Claim:Two Bit No. 1 and No. 2), Two Bit Mining District (Whitewood Mining District), Lawrence County, South Dakota, USA
65.9km (41.0 miles) ⓘFlorence mine (Double Rainbow Group), Galena Mining District, Lawrence County, South Dakota, USA
References
Rocks & Minerals: 60: 117-118.
 
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 4, 2026 04:41:53
Go to top of page