Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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

Sericite from
Dewey Mine, First Choice Mining District (Garnet Mining District), Granite County, Montana, USA


Locality type:Mine
Classification
Species:Muscovite var: Sericite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sericite data
Locality Data:Click here to view Dewey Mine, First Choice Mining District (Garnet Mining District), Granite County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:497529
Long-form Identifier:1:3:497529:8
GUID (UUID V4):0
Nearest other occurrences of Sericite
0.3km (0.2 miles) ⓘCascade Mine, First Choice Mining District (Garnet Mining District), Granite County, Montana, USA
6.7km (4.2 miles) ⓘRed Rock Mine, Top O'Deep Mining District, Powell County, Montana, USA
25.1km (15.6 miles) ⓘJack Pot Mine, Wallace Mining District (Clinton Mining District), Missoula County, Montana, USA
48.5km (30.1 miles) ⓘPotosi Shaft, Rose Mountain Mining District (Gold Creek Mining District), Granite County, Montana, USA
49.5km (30.8 miles) ⓘMajestic Claim (Snow Bunny Prospect), Rose Mountain Area, Powell County, Montana, USA
76.8km (47.7 miles) ⓘBald Butte Mine (Knifeblade Mine), Marysville Mining District, Lewis and Clark County, Montana, USA
77.9km (48.4 miles) ⓘHeddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA
87.2km (54.2 miles) ⓘBaldy Smith Mine, Greenhorn Mining District (Austin Mining District), Lewis and Clark County, Montana, USA
90.8km (56.4 miles) ⓘLost Cabin Group, Nine Mile Mining District, Missoula County, Montana, USA
92.6km (57.5 miles) ⓘBunker Hill Mine, Vaughn Mining District (Rimini Mining District), Lewis and Clark County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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 4, 2026 02:18:18
Go to top of page