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

Calcite from
Hidden Lake, Horseshoe District, Park County, Montana, USA


Locality type:Volcanic Field
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Nesquehonite1
Aragonite1
Monohydrocalcite1
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Hidden Lake, Horseshoe District, Park County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:1995618
Long-form Identifier:1:3:1995618:1
GUID (UUID V4):0
Nearest other occurrences of Calcite
25.0km (15.5 miles) ⓘGlengarry Mine (Glengary; Como), New World Mining District (Cooke Mining District), Park County, Montana, USA
26.2km (16.3 miles) ⓘBull Elk Lode (Arrowhead Lode), New World Mining District (Cooke Mining District), Park County, Montana, USA
26.2km (16.3 miles) ⓘViola Lode Occurrence, New World Mining District (Cooke Mining District), Park County, Montana, USA
33.6km (20.9 miles) ⓘLivingstone Marble & Granite Co. Quarry (Gardiner Travertine Deposits; Montana Travertine Company Deposits), Gardiner, Park County, Montana, USA
46.4km (28.8 miles) ⓘPicket Pins prospect (Picket Pin occurrence), Sweet Grass County, Montana, USA
47.9km (29.8 miles) ⓘStillwater Mine, Stillwater County, Montana, USA
61.5km (38.2 miles) ⓘHoodoo claim, Sunlight Mining District, Park County, Wyoming, USA
71.3km (44.3 miles) ⓘOjo Caliente Spring, Lower Geyser Basin, Teton County, Wyoming, USA
73.4km (45.6 miles) ⓘCartwright Calcite Deposit (Cartwright Crystal Spar Group), Sweet Grass County, Montana, USA
76.8km (47.7 miles) ⓘRed Cliff Cave, Red Cliff Campground, Gallatin County, Montana, USA
References
Paula Piilonen CollectionIdentified by Paula Piilonen: XRD
 
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 07:19:05
Go to top of page