Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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

Pitchblende from
Sunnyside Tunnel, Fall River, Clear Creek County, Colorado, USA


Locality type:Tunnel
Classification
Species:Uraninite var: Pitchblende
Formula:UO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pitchblende data
Locality Data:Click here to view Sunnyside Tunnel, Fall River, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:666138
Long-form Identifier:1:3:666138:0
GUID (UUID V4):0
Nearest other occurrences of Pitchblende
2.2km (1.4 miles) Golconda Mine, Fall River, Clear Creek County, Colorado, USA
2.2km (1.4 miles) Calhoun-Wood Mines (Jefferson), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
2.2km (1.4 miles) Blazing Star tunnel, Lower Almaden Mine, Central City Mining District, Clear Creek County, Colorado, USA
2.3km (1.4 miles) West Calhoun Mine, Calhoun-Wood Mines (Jefferson), Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
2.3km (1.4 miles) Kirk Mine, Quartz Hill, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
2.4km (1.5 miles) Mary Mine (Phillips tunnel), Fall River, Clear Creek County, Colorado, USA
2.5km (1.5 miles) Taylor-Leavenworth Mine, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
2.8km (1.7 miles) Rara Avis, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
3.0km (1.9 miles) Telegraph Mine, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
3.4km (2.1 miles) Buckley Mine, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
References
 
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 6, 2026 10:52:43
Go to top of page