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

Chalcedony from
Indian Head Rock, Basin, Jefferson County, Montana, USA


Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Indian Head Rock, Basin, Jefferson County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:218929
Long-form Identifier:1:3:218929:1
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
0.4km (0.2 miles) ⓘRed Rock Mine, Jefferson County, Montana, USA
16.0km (10.0 miles) ⓘMount Washington Mine (Deer tunnel; Monongahela-Mount Washington M. Company; Angelica Mining & Development Company; Salvail), Colorado Mining District (Prickly Pear Mining District; Corbin Mining District), Jefferson County, Montana, USA
21.9km (13.6 miles) ⓘArgonne Mine, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
30.7km (19.1 miles) ⓘG. Washington Mine (Member of Presidents Group), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
31.8km (19.7 miles) ⓘW. Wilson Mine (Liverpool Mine), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
31.9km (19.8 miles) ⓘLittle Nell Mine (Little Nellie Mine), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
33.5km (20.8 miles) ⓘRoosevelt Mine, Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
42.2km (26.2 miles) ⓘMeadow Mine (Haab), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
49.6km (30.8 miles) ⓘPrickly Pear Claim, Sevenmile-Scratchgravel Mining District, Lewis and Clark County, Montana, USA
62.6km (38.9 miles) ⓘEldorado Bar, East Helena, Lewis and Clark County, Montana, USA
References
Rowe, J. P. (1908) Barytes deposits in Montana. Mining World, 28 (16).
DeMunck, Victor C. and Walter C. Ackerman (1958) Barite Deposits in Montana.
 
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 04:59:08
Go to top of page