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

Rhodochrosite from
Cummings Mine (Cummings lease; Section 13; Lone Tree; Winship property), Eagle Mountain, Ladd-Buckeye Mining District, San Joaquin County, California, USA


Locality type:Mine
Classification
Species:Rhodochrosite
Formula:MnCO3
Comments:Occurs mixed with bementite.
Colour:Gray
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Bementite
Inesite
Data
Mineral Data:Click here to view Rhodochrosite data
Locality Data:Click here to view Cummings Mine (Cummings lease; Section 13; Lone Tree; Winship property), Eagle Mountain, Ladd-Buckeye Mining District, San Joaquin County, California, USA
Data Identifiers
Mindat Occurrence Record ID:667779
Long-form Identifier:1:3:667779:4
GUID (UUID V4):0
Nearest other occurrences of Rhodochrosite
2.7km (1.7 miles) Ladd Mine (Old Ladd Mine; Corral Hollow Mine; Carral Hollow Mine), Castle Rock, Ladd-Buckeye Mining District, San Joaquin County, California, USA
3.3km (2.1 miles) Fabian Mine, Castle Rock, Ladd-Buckeye Mining District, San Joaquin County, California, USA
5.8km (3.6 miles) Scott prospect, Eagle Mountain, Ladd-Buckeye Mining District, San Joaquin County, California, USA
9.7km (6.0 miles) Chaney Winship-Doak Mine (Winship-Donovan Mine; Chaney deposit; Chaney lease), Tesla, Livermore Mining District (Tesla District), Alameda County, California, USA
10.1km (6.3 miles) Buckeye Mine (Buckeye Mines; Wright Mine), Mount Oso, Ladd-Buckeye Mining District, Stanislaus County, California, USA
11.1km (6.9 miles) Moran Brothers Mine (Moy Mine; Stanislaus County occurrence), Mount Oso, Ladd-Buckeye Mining District, Stanislaus County, California, USA
13.7km (8.5 miles) Nelson Bailey Mine (Nelson lease; Bailey Mine; Newhall Mine), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
14.7km (9.1 miles) Arroyo Mocho Road occurrence (Mines Road ?), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
14.8km (9.2 miles) Camp 9 deposit (Camp 9 Merchant; Cummings), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
14.9km (9.3 miles) Section 14 Mine (Section 14 deposit), Sugarloaf Butte, Cedar Mountain Mining District, Alameda County, California, USA
References
 
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 03:04:04
Go to top of page