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

Pyrite from
Dewey Mine (Dewey Gold Mines Trust), Mountain House, Klamath Mountains, Siskiyou County, California, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Arsenopyrite
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Dewey Mine (Dewey Gold Mines Trust), Mountain House, Klamath Mountains, Siskiyou County, California, USA
Data Identifiers
Mindat Occurrence Record ID:668581
Long-form Identifier:1:3:668581:2
GUID (UUID V4):0
Nearest other occurrences of Pyrite
3.6km (2.2 miles) ⓘGold Mountain group, Mountain House, Klamath Mountains, Siskiyou County, California, USA
13.3km (8.3 miles) ⓘUnnamed Cu-Ag occurrence [1], Harmon, Klamath Mountains, Trinity County, California, USA
13.7km (8.5 miles) ⓘUnnamed Au mine [49], Harmon, Klamath Mountains, Trinity County, California, USA
13.9km (8.6 miles) ⓘUnnamed Au mine [48], Harmon, Klamath Mountains, Trinity County, California, USA
16.3km (10.1 miles) ⓘCopper King Mine (Copper King claim), Schneider Hill, Callahan Mining District (Scott River Mining District), Klamath Mountains, Siskiyou County, California, USA
16.3km (10.1 miles) ⓘPolar Bear Mine (Chalcopyrite Mine), Schneider Hill, Callahan Mining District (Scott River Mining District), Klamath Mountains, Siskiyou County, California, USA
26.2km (16.3 miles) ⓘRothkoph group, Fort Jones, Oro Fino Mining District, Klamath Mountains, Siskiyou County, California, USA
26.9km (16.7 miles) ⓘOro Grande Mining Company Mine (McKeen; Cummings; Shasta), Sugar Hill, Callahan Mining District (Scott River Mining District), Klamath Mountains, Siskiyou County, California, USA
29.9km (18.6 miles) ⓘYellow Butte Mine, Yellow Butte, Siskiyou County, California, USA
30.2km (18.8 miles) ⓘUnnamed Cu occurrence [3], Ramshorn Summit, Altoona Mining District, Trinity Mountains, Klamath Mountains, Trinity County, California, USA
References
Mining and Scientific Press (1903), The Dewey mine: Mining and Scientific Press: 87: 9
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 87.
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 4, 2026 03:44:57
Go to top of page