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

Quartz from
Potosi & Cross Mines, Caribou Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Gold3
Native Silver2
Acanthite2
Native Tellurium1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Potosi & Cross Mines, Caribou Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:434308
Long-form Identifier:1:3:434308:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.0km (0.0 miles) ⓘPoorman Mine (2), Caribou Mining District, Boulder County, Colorado, USA
0.3km (0.2 miles) ⓘCaribou Mine (Caribou shaft), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA
1.6km (1.0 miles) ⓘBoulder County Mine, Caribou Mining District, Boulder County, Colorado, USA
3.2km (2.0 miles) ⓘEnterprise Vein Occurrence, Eldora, Caribou Mining District, Boulder County, Colorado, USA
3.6km (2.2 miles) ⓘSwathmore tunnel, Eldora, Caribou Mining District, Boulder County, Colorado, USA
4.5km (2.8 miles) ⓘBig Horn Shaft (Caribou), Sugarloaf Mining District, Boulder County, Colorado, USA
4.8km (3.0 miles) ⓘRevenge Occurrence, Caribou Mining District, Boulder County, Colorado, USA
5.4km (3.3 miles) ⓘBettig mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
5.5km (3.4 miles) ⓘConger Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
6.4km (4.0 miles) ⓘBobcat Occurrence (Mud Lake; Greenhorn; Philip Extension; Richard; Lone Tree; Crow; Nabob; Rake off; Corkscrew), Boulder County Tungsten Mining District, Boulder County, Colorado, USA
References
Kosnar, Richard A. (1979) What's New in Colorado Minerals?. The Mineralogical Record, 10 (6) 329-332
 
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 14:03:45
Go to top of page