Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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

Chert from
Sausalito Point prospect, Sausalito, Marin County, California, USA


Locality type:Prospect
Classification
Type:Chert
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chert data
Locality Data:Click here to view Sausalito Point prospect, Sausalito, Marin County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1206888
Long-form Identifier:1:3:1206888:5
GUID (UUID V4):0
Nearest other occurrences of Chert
2.4km (1.5 miles) Sausalito Road Quarry, Sausalito, Marin County, California, USA
9.4km (5.9 miles) Red Rock Island deposit, Richmond, Contra Costa County, California, USA
13.9km (8.6 miles) Forbes Quarry, San Rafael, Marin County, California, USA
17.9km (11.1 miles) Bolinas, Marin County, California, USA
19.6km (12.2 miles) Agate Beach, Bolinas, Marin County, California, USA
36.1km (22.4 miles) Mazza prospect (Mazza Ranch prospect), Novato, Marin County, California, USA
73.3km (45.5 miles) Dyer prospect, Altamont, Alameda County, California, USA
73.9km (45.9 miles) Powers prospect, Spanish Flat, Napa County, California, USA
75.9km (47.2 miles) Moore Creek prospect (Manganese Ridge prospect), Manganese Ridge, Angwin, Napa County, California, USA
77.1km (47.9 miles) Kelly Mine, Mendenhall Springs, Livermore Mining District (Tesla 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 9, 2026 02:00:21
Go to top of page