Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete 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

Serpentinite from
Mount Diablo Mine, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA


Locality type:Mine
Classification
Type:Serpentinite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Serpentinite data
Locality Data:Click here to view Mount Diablo Mine, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1209202
Long-form Identifier:1:3:1209202:2
GUID (UUID V4):0
Nearest other occurrences of Serpentinite
34.2km (21.3 miles) Hastings Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USA
38.7km (24.1 miles) St. Johns Mine (St. John Mine; Vallejo Mine; St. Johns Quicksilver Mine), Sulfur Springs Mountain, Vallejo, Solano County, California, USA
44.7km (27.8 miles) Mendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine), Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
47.0km (29.2 miles) Unnamed Hg occurrence [1], Divisadero Street near McAllister Street, Lower Haight neighborhood, San Francisco, San Francisco County, California, USA
55.1km (34.3 miles) Challenge deposit, Redwood City, San Mateo County, California, USA
61.3km (38.1 miles) J. M. MacDonough Ranch Mine, Portola Valley, San Mateo County, California, USA
64.0km (39.8 miles) Winship Mine, Red Mountain, Black Wonder Mining District, Santa Clara County, California, USA
70.3km (43.7 miles) Antonia claim, Black Mountain, Black Wonder Mining District, Santa Clara County, California, USA
74.0km (46.0 miles) Santa Teresa Mine, New Almaden, New Almaden Mining District, Santa Clara County, California, USA
74.3km (46.2 miles) Bernal Mine, New Almaden, New Almaden Mining District, Santa Clara 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 8, 2026 01:43:30
Go to top of page