Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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

Gypsum from
Unnamed coal mine, Weld County, Colorado, USA


Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Unnamed coal mine, Weld County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:1210860
Long-form Identifier:1:3:1210860:6
GUID (UUID V4):0
Nearest other occurrences of Gypsum
38.4km (23.9 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
40.6km (25.2 miles) ⓘLoveland Quarry (United States Gypsum Quarry), Larimer County, Colorado, USA
45.4km (28.2 miles) ⓘCoon Gulch Clay Pits, Lower Clear Creek Area, Jefferson County, Colorado, USA
54.6km (33.9 miles) ⓘJohnson Reservoir, Jefferson County, Colorado, USA
58.9km (36.6 miles) ⓘQuartz Hill, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
63.4km (39.4 miles) ⓘBelcher, Nevada Gulch, Gilpin County, Colorado, USA
77.5km (48.1 miles) ⓘOwl Canyon, Larimer County, Colorado, USA
78.2km (48.6 miles) ⓘPayrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
78.5km (48.8 miles) ⓘDiamond Mine (Diamond Tunnel), Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
79.1km (49.2 miles) ⓘBurleigh Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
References
Zielinski, R. A., Otton, J. K., & Johnson, C. A. (2001). Sources of salinity near a coal mine spoil pile, north-central Colorado. Journal of environmental quality, 30(4), 1237-1248.
 
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 7, 2026 02:02:00
Go to top of page