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

Spessartine from
Pescia prospect (Pescia deposit), Sheep Ranch, Mountain Ranch Mining District, East Belt, Calaveras County, California, USA


Locality type:Prospect
Classification
Species:Spessartine
Formula:Mn32+Al2(SiO4)3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Spessartine data
Locality Data:Click here to view Pescia prospect (Pescia deposit), Sheep Ranch, Mountain Ranch Mining District, East Belt, Calaveras County, California, USA
Data Identifiers
Mindat Occurrence Record ID:324599
Long-form Identifier:1:3:324599:6
GUID (UUID V4):0
Nearest other occurrences of Spessartine
3.1km (1.9 miles) ⓘZurcher Mine (Zurcher prospect; Zurcher property; Quarry No. 1), Sheep Ranch, Mountain Ranch Mining District, East Belt, Calaveras County, California, USA
3.8km (2.3 miles) ⓘSoapstone Mine (Soapstone claim), Sheep Ranch, Mountain Ranch Mining District, East Belt, Calaveras County, California, USA
5.9km (3.7 miles) ⓘHauselt prospect (Hauselt patent; Hauselt Mine), Murphys, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USA
10.8km (6.7 miles) ⓘCarley Mine (Carley prospect), La Honda Park, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USA
11.2km (7.0 miles) ⓘHarrington prospect (Harrington deposit; Manganese Mine claim), Murphys, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USA
15.9km (9.9 miles) ⓘWindeler claims (Windeler deposit), American Camp Station, American Camp Mining District, East Belt, Tuolumne County, California, USA
17.6km (10.9 miles) ⓘAirola Mine (Airola deposit), Angels Camp area, Calaveras County, California, USA
20.0km (12.4 miles) ⓘFortner Ranch prospect (Fortner Ranch property), San Andreas area, Calaveras County, California, USA
31.8km (19.8 miles) ⓘWest deposit (West prospect), Tuolumne, Soulsbyville & Confidence Mining District, East Belt, Tuolumne County, California, USA
40.6km (25.2 miles) ⓘGermolis prospect (Rodon; Rodonick; Germolie; Cormolis), Fiddletown (Oleta), Fiddletown Mining District (Oleta Mining District), Amador County, California, USA
References
Trask, Parker Davies, Ivan F. Wilson & F.S. Simons (1943), Manganese deposits of California – a summary report: California Division Mines Bulletin 125: 106-107
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 5, 2026 01:04:41
Go to top of page