Log InRegister
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 ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Escondido Quarries; Inc. (John Stridsberg Quarries; Superior Black Quarry), Escondido, San Diego Co., California, USAi
Regional Level Types
Escondido Quarries; Inc. (John Stridsberg Quarries; Superior Black Quarry)Mine
Escondido- not defined -
San Diego Co.County

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
33° 6' 1'' North , 117° 7' 37'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
Escondido151,451 (2017)4.3km
San Marcos92,931 (2017)6.0km
Lake San Marcos4,437 (2018)8.1km
Hidden Trails750 (2008)10.6km
Rancho Santa Fe3,117 (2011)11.3km
Other/historical names associated with this locality:
Don Potts Quarry; Crystal Black Quarry; Pacific Cut Stone and Granite Company; Pacific Cut Stone and Granite Company; Ebony Black Diamond Granite Company; Valley Granite Company Quarries

A former granite quarry located 4.4 km (2.7 miles) from Escondido center.

Regions containing this locality

Pacific OceanOcean
Pacific PlateTectonic Plate

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

No minerals currently recorded for this locality.

List of minerals for each chemical element


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Weber, F.H., Jr. (1963a), Mines and mineral resources of San Diego County, California; California Division of Mines and Geology, County Report 3, 309 pp.: 261.

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: February 22, 2020 22:03:55 Page generated: June 25, 2019 07:47:27
Go to top of page