Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Quartz from
San Francisquito Canyon reservoir, San Francisquito Canyon, Los Angeles County, California, USA


Locality type:Reservoir
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Clinozoisite
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view San Francisquito Canyon reservoir, San Francisquito Canyon, Los Angeles County, California, USA
Data Identifiers
Mindat Occurrence Record ID:677104
Long-form Identifier:1:3:677104:1
GUID (UUID V4):0
Nearest other occurrences of Quartz
11.6km (7.2 miles) ⓘSilver King Mine, Bouquet Reservoir, Bouquet Canyon, Green Valley, Sierra Pelona Mts (Sierra Pelona Range), Los Angeles County, California, USA
15.4km (9.6 miles) ⓘLang Mine, Tick Canyon Borate deposit, Tick Canyon, Lang, Los Angeles County, California, USA
15.6km (9.7 miles) ⓘMint Canyon, Mint Canyon [town], Los Angeles County, California, USA
16.9km (10.5 miles) ⓘTick Canyon, Lang, Los Angeles County, California, USA
23.6km (14.7 miles) ⓘEscondido Canyon Road - Hubbard Road area, Agua Dulce, Antelope Valley, Los Angeles County, California, USA
24.8km (15.4 miles) ⓘCollecting Site Mine, Antelope Valley, Acton, Acton Mining District, Los Angeles County, California, USA
24.9km (15.5 miles) ⓘPacoima Canyon pegmatite locality (Pacoima Canyon Allanite pegmatite; Allanite locality), Pacoima Canyon, Los Angeles County, California, USA
26.5km (16.5 miles) ⓘDenver group (Denver Mining and Milling Company; Ore Hill group; Red Ledge Mine; Fenner Mine; Chance Mine; Pacoima Canyon Mine), Kagel Canyon, Los Angeles County, California, USA
28.0km (17.4 miles) ⓘBradshaw Lease Mine (Bradshaw lease), Red Rover Canyon, Acton, Acton District, Antelope Valley, Los Angeles County, California, USA
31.0km (19.3 miles) ⓘFree Cuba Mine, Soledad Canyon, Acton, Acton District, Los Angeles County, California, USA
References
Murdock, Joseph, Webb, Robert W. (1938) Notes on some minerals from southern California. American Mineralogist, 23 (5) 349-355
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 152.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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 3, 2026 13:13:53
Go to top of page