Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Beryl from
Monte Carlo Prospect, Keystone Mining District, Pennington County, South Dakota, USA


Locality type:Prospect
Classification
Species:Beryl
Formula:Be3Al2(Si6O18)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Beryl data
Locality Data:Click here to view Monte Carlo Prospect, Keystone Mining District, Pennington County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:610663
Long-form Identifier:1:3:610663:8
GUID (UUID V4):0
Nearest other occurrences of Beryl
0.4km (0.2 miles) ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
0.9km (0.5 miles) ⓘDan Patch West Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.0km (0.6 miles) ⓘHugo Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.0km (0.6 miles) ⓘNickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.2km (0.8 miles) ⓘPeerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.4km (0.9 miles) ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.6km (1.0 miles) ⓘEdison Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
1.8km (1.1 miles) ⓘHenry Tin Occurrence, Keystone Mining District, Pennington County, South Dakota, USA
2.2km (1.4 miles) ⓘDan Patch Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
2.6km (1.6 miles) ⓘSitting Bull pegmatite, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
References
Norton, James J. (1964) Pegmatites and other Precambrian Rocks in the Southern Black Hills; Geology and mineral deposits of some pegmatites in the southern Black Hills, South Dakota. Professional Paper 297-E. US Geological Survey p.293-341. doi:10.3133/pp297e
 
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 3, 2026 08:48:53
Go to top of page