Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle 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

Opal from
Unnamed Diatomite deposits [12], Santa Ynez, Santa Barbara County, California, USA


Locality type:Deposit
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Unnamed Diatomite deposits [12], Santa Ynez, Santa Barbara County, California, USA
Data Identifiers
Mindat Occurrence Record ID:1004236
Long-form Identifier:1:3:1004236:0
GUID (UUID V4):0
Nearest other occurrences of Opal
11.6km (7.2 miles) ⓘUnnamed Diatomite deposit [1], Solvang, Santa Barbara County, California, USA
15.3km (9.5 miles) ⓘUnnamed Diatomite deposits [8], Los Olivos, Santa Barbara County, California, USA
16.0km (10.0 miles) ⓘUnnamed Diatomite deposits [10], Buellton, Santa Barbara County, California, USA
23.8km (14.8 miles) ⓘUnnamed Diatomite deposit, Las Cruces, Santa Barbara County, California, USA
25.1km (15.6 miles) ⓘGrefco Mine, Buellton, Santa Barbara County, California, USA
28.9km (18.0 miles) ⓘPalos Colorados Quarry, Lompoc, Santa Barbara County, California, USA
29.8km (18.5 miles) ⓘGreat Lakes Carbon Corp. Mine, Lompoc, Santa Barbara County, California, USA
30.6km (19.0 miles) ⓘUnnamed Diatomite deposit [4], Lompoc, Santa Barbara County, California, USA
32.5km (20.2 miles) ⓘHope Ranch [2], Santa Barbara County, California, USA
34.7km (21.5 miles) ⓘArroyo Burro Beach, Santa Barbara County, California, USA
References
Dibblee, T.W., Jr. (1950) Geology of southwestern Santa Barbara County, California, Point Arguello, Lompoc, Point Conception, Los Olivos, and Gaviota Quadrangles, California Division of Mines Bulletin 150: Pl. 4.
 
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 5, 2026 07:58:02
Go to top of page