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

Molybdenite from
Cosumnes Copper Mine, Fair Play, Fairplay Mining District, El Dorado County, California, USA


Locality type:Mine
Classification
Species:Molybdenite
Formula:MoS2
Comments:Occurs with massive bornite as foliated plates and crystals to 6 cm diameter in a coarse pegmatite.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Axinite-(Mn)
Bornite
Calcite
Epidote
Orthoclase
Powellite
Data
Mineral Data:Click here to view Molybdenite data
Locality Data:Click here to view Cosumnes Copper Mine, Fair Play, Fairplay Mining District, El Dorado County, California, USA
Data Identifiers
Mindat Occurrence Record ID:59332
Long-form Identifier:1:3:59332:4
GUID (UUID V4):0
Nearest other occurrences of Molybdenite
7.5km (4.7 miles) ⓘGrizzley Flat deposit (Sciaroni; Candor; Pierce), Happy Valley, Grizzly Flat Mining District, East Belt, El Dorado County, California, USA
21.9km (13.6 miles) ⓘPacific Quartz Mine (Pacific Mine), Placerville (Hangtown), Placerville Mining District, El Dorado County, California, USA
29.3km (18.2 miles) ⓘFunny Bug Mine (Pendelco Mine), Gold Hill, Shingle Springs Mining District, West Belt, El Dorado County, California, USA
31.3km (19.4 miles) ⓘArgonaut Mine (Pioneer Mine; Sunset), Martell, Jackson-Plymouth Mining District, Amador County, California, USA
32.1km (20.0 miles) ⓘZeile Mine (Zeila Mine; Coney and Bigelow claim; Blue Jacket claim; Tims Corner tailings pile), Jackson, Jackson-Plymouth Mining District, Amador County, California, USA
33.9km (21.1 miles) ⓘGarnet Hill Mine (Rheona claim), Garnet Hill, Calaveras County, California, USA
34.7km (21.6 miles) ⓘMoore Creek Mine (Moore Creek deposit; Bay Horse Mine; Whitehorse; White Horse Mine), Garnet Hill, Calaveras County, California, USA
53.7km (33.4 miles) ⓘGolden Stag Mine (Monahan Mine), Duncan Hill, Auburn, Ophir Mining District (Auburn Mining District; Duncan Hill Mining District), Placer County, California, USA
54.2km (33.7 miles) ⓘWinnemucca Lake Mine, Winnemucca Lake, Alpine County, California, USA
54.5km (33.9 miles) ⓘElder Mine (Willet Mine), Clipper Gap, Placer County, California, USA
References
Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 274
Dana, Edward Salisbury; Dana, James Dwight (1892) A System of Mineralogy (6th ed.). John Wiley & Sons, Inc.
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureaup.180
Tucker, W. Burling & C.A. Waring (1919), El Dorado County: California Mining Bureau. Report 15: 276-278
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 110, 131, 175, 268. USGS Bull 1182E.
 
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 08:51:31
Go to top of page