Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Cuprite from
Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA


Locality type:Mine
Classification
Species:Cuprite
Formula:Cu2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cuprite data
Locality Data:Click here to view Cotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:34967
Long-form Identifier:1:3:34967:1
GUID (UUID V4):0
Nearest other occurrences of Cuprite
26.6km (16.6 miles) ⓘGreen Mountain Mine (Copper Boy Mine), Grape Creek Mining District (Greenhorn Mining District), Fremont County, Colorado, USA
26.9km (16.7 miles) ⓘGypse Queen Mine, Cleora Mining District, Chaffee County, Colorado, USA
27.5km (17.1 miles) ⓘStockton Mine (Gertrude Vein), Cleora Mining District, Chaffee County, Colorado, USA
36.2km (22.5 miles) ⓘPoncha Springs, Browns Canyon Mining District, Chaffee County, Colorado, USA
38.1km (23.7 miles) ⓘSedalia Mine (Sedalia Copper Mine), Sedalia Mining District, Chaffee County, Colorado, USA
55.3km (34.4 miles) ⓘLilly Mine, Monarch Mining District, Chaffee County, Colorado, USA
61.9km (38.5 miles) ⓘIron King, Tomichi Mining District (White Pine Mining District), Gunnison County, Colorado, USA
76.7km (47.7 miles) ⓘIda May mine, Gold Hill Cumberland Pass, Quartz Creek Mining District, Gunnison County, Colorado, USA
77.1km (47.9 miles) ⓘGold Hill, Tincup Mining District (Pieplant Mining District), Gunnison County, Colorado, USA
79.1km (49.2 miles) ⓘTamarack Occurrence, Buena Vista Area, Free Gold Mining District, Chaffee County, Colorado, USA
References
Am Min 50:1179-1212
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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 3, 2026 15:14:46
Go to top of page