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

Gypsum from
Middle Fork Creek Borate deposits (Jumbo claim; Gib claim; Center Creek claim; Baldwin claim; Mammoth claim), Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA


Locality type:Deposit
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Middle Fork Creek Borate deposits (Jumbo claim; Gib claim; Center Creek claim; Baldwin claim; Mammoth claim), Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
Data Identifiers
Mindat Occurrence Record ID:336111
Long-form Identifier:1:3:336111:5
GUID (UUID V4):0
Nearest other occurrences of Gypsum
0.7km (0.4 miles) Ives tunnel, Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
1.5km (0.9 miles) Bitter Creek Borate Workings Mine (Bitter Creek claim; Bitter Crick placer claim; Merrill claim; Comet claim; Climax claim; Gridiron Placer Mining claim; Bueno claim), Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
1.7km (1.0 miles) Stubblefield & Halloway property, Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
3.9km (2.4 miles) Frazier Mine (Frazier Borax Mine), Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
5.1km (3.2 miles) Unnamed Borate prospects [1], Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
5.2km (3.2 miles) Russell Mine, Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
6.0km (3.7 miles) Columbus Mine, Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
6.4km (3.9 miles) Eureka claim, Lockwood Valley, Lake of the Woods area, Ventura County Borate Mining District (Stauffer Mining District), Ventura County, California, USA
12.3km (7.7 miles) Antimony Peak deposit (San Emigdio Mine; San Emigdio-Antimony Peak; Antimony Peak Mine), Antimony Peak, Kern County, California, USA
25.0km (15.6 miles) Quatal Canyon Quarry (Cuyama Quarry), Ventucopa area, Ventura 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 12:35:57
Go to top of page