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

Syenite from
Shonkin Sag laccolith, Highwood Mountains, Chouteau County, Montana, USA


Classification
Type:Syenite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Syenite data
Locality Data:Click here to view Shonkin Sag laccolith, Highwood Mountains, Chouteau County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:1383252
Long-form Identifier:1:3:1383252:4
GUID (UUID V4):0
Nearest other occurrences of Syenite
57.3km (35.6 miles) ⓘDoktor Kalloch Mine, Barker Mining District, Judith Basin County, Montana, USA
57.4km (35.6 miles) ⓘHughesville occurrence, Barker Mining District, Judith Basin County, Montana, USA
58.3km (36.2 miles) ⓘBarker Mine, Barker, Barker Mining District, Judith Basin County, Montana, USA
81.1km (50.4 miles) ⓘUnnamed Uranium - Zinc - Niobium (Columbium) - Copper - Lead - Zirconium - Titanium - Metal Occurrence (Vermiculite Prospect; MRDS - 10019371), Hill County, Montana, USA
81.6km (50.7 miles) ⓘRocky Boy Stock Occurrence, Hill County, Montana, USA
83.6km (52.0 miles) ⓘBowery Peak carbonatite complex, Hill County, Montana, USA
90.9km (56.5 miles) ⓘMaginnis Mine (Oro Cache Mine), Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USA
91.4km (56.8 miles) ⓘCumberland Mine, Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District), Fergus County, Montana, USA
References
A differentiated alkaline intrusion, Highwood Mountains, Montana", Rocky Mountain Section of the Geological Society of America, Stanley S. Beus
W. P. Nash, Lawrence M. Monson, (1987) "Shonkin Sag laccolith
 
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 04:39:21
Go to top of page