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

Gold (commodity) from
San Geronimo prospect, San Geronimo, Marin County, California, USA


Locality type:Prospect
Classification
Commodity:Gold (commodity)
Data
Commodity Data:Click here to view Gold (commodity) data
Locality Data:Click here to view San Geronimo prospect, San Geronimo, Marin County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1206827
Long-form Identifier:1:3:1206827:4
GUID (UUID V4):0
Nearest other deposits of Gold (commodity)
7.9km (4.9 miles) Union Gulch Mine (Chetco; Pearson and Brothers; Bolinas), Five Brooks, Marin County, California, USA
9.8km (6.1 miles) Randall occurrence, Bolinas, Marin County, California, USA
13.1km (8.2 miles) Heaton's Flat Placer Mine, Five Brooks, Marin County, California, USA
14.7km (9.1 miles) Inverness Ridge placer, Inverness Park, Inverness Ridge (Point Reyes Hill), Point Reyes Cape, Marin County, California, USA
33.6km (20.9 miles) Unnamed Au prospect [3], Bloomfield, Sonoma County, California, USA
34.0km (21.1 miles) Unnamed Au mine [1], Bloomfield, Sonoma County, California, USA
34.3km (21.3 miles) Unnamed Au placer deposit [1], Fleischacker Zoo Beach area, San Francisco, San Francisco County, California, USA
36.1km (22.4 miles) Tomales Point placer, Seahaven, Inverness Ridge (Point Reyes Hill), Point Reyes Cape, Marin County, California, USA
39.7km (24.7 miles) Black Mountain Mine (Black Mtn.), San Bruno Mountain State and County Park, Daly City, San Mateo County, California, USA
49.2km (30.6 miles) Leona Mine (Leona Heights Mine), Leona Heights deposit, Leona Heights, Oakland, Oakland Hills (San Leandro Hills), Alameda County, California, USA
 
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 09:33:35
Go to top of page