Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for 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

Calcite from
Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA


08826200017362231664317.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
09331320017272088342470.jpg
Calcite, etc.

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
08727050017367429686530.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
06763860017367429696703.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
08826200017362231664317.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
09331320017272088342470.jpg
Calcite, etc.

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
09987000017364855471645.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
03212590017364883897843.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
08826200017362231664317.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
09331320017272088342470.jpg
Calcite, etc.

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
01200150017367429701630.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
05037860017367429702411.jpg
Calcite

Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Siderite3
Gypsum3
Hematite1
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Pony Express Mine, Paquin Mining District, Ouray County, Colorado, USA
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:293078
Long-form Identifier:1:3:293078:7
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.4km (0.2 miles) ⓘBachelor-Syracuse Mine, Paquin Mining District, Ouray County, Colorado, USA
1.1km (0.7 miles) ⓘAmerican Nettie Mine, Gold Hill, Ouray Mining District, Ouray County, Colorado, USA
1.5km (0.9 miles) ⓘCalliope Mine, Paquin Mining District, Ouray County, Colorado, USA
1.5km (0.9 miles) ⓘBright Diamond Mine, Gold Hill, Ouray Mining District, Ouray County, Colorado, USA
1.6km (1.0 miles) ⓘBlack Silver Mine, Paquin Mining District, Ouray County, Colorado, USA
1.7km (1.1 miles) ⓘIron Clad Mine, Gold Hill, Ouray Mining District, Ouray County, Colorado, USA
2.0km (1.3 miles) ⓘNews Boy Mine, Paquin Mining District, Ouray County, Colorado, USA
2.4km (1.5 miles) ⓘGreat Western Mine, Gold Hill, Ouray Mining District, Ouray County, Colorado, USA
2.4km (1.5 miles) ⓘBlack Girl mine, Paquin Mining District, Ouray County, Colorado, USA
2.9km (1.8 miles) ⓘSenorita Mine, Paquin Mining District, Ouray County, Colorado, USA
References
2008 New Mexico Mineral Symposium abstracts
Muntyan, Barbara L. (1995) Colorado Calcite: Featured Mineral at the 1995 Denver Show. Rocks & Minerals, 70(5), 298-310.
 
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 5, 2026 00:14:24
Go to top of page