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

Quartz-monzonite from
Seafoam Mine (Montana Mine), Seafoam Mining District, Custer County, Idaho, USA


Locality type:Mine
Classification
Type:Quartz-monzonite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz-monzonite data
Locality Data:Click here to view Seafoam Mine (Montana Mine), Seafoam Mining District, Custer County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:1053444
Long-form Identifier:1:3:1053444:5
GUID (UUID V4):0
Nearest other occurrences of Quartz-monzonite
1.4km (0.9 miles) ⓘPost's Property Mine (Lost Claim Group), Seafoam Mining District, Custer County, Idaho, USA
1.6km (1.0 miles) ⓘTrade Dollar Prospect, Seafoam Mining District, Custer County, Idaho, USA
2.0km (1.3 miles) ⓘCollister Property Claims, Seafoam Mining District, Custer County, Idaho, USA
2.2km (1.4 miles) ⓘSeagraves Mine (Lone Star Mine; Silver King Prospect; Star Mine; Grey Eagle Mine), Seafoam Mining District, Custer County, Idaho, USA
2.5km (1.6 miles) ⓘLakeview Prospect, Seafoam Mining District, Custer County, Idaho, USA
3.5km (2.1 miles) ⓘRasche Property Claims (Lost Claim Acebo), Seafoam Mining District, Custer County, Idaho, USA
6.8km (4.2 miles) ⓘCapitol State Claim, Seafoam Mining District, Custer County, Idaho, USA
8.0km (4.9 miles) ⓘLemp Group, Sheep Mountain Mining District, Custer County, Idaho, USA
8.2km (5.1 miles) ⓘMoonshine Prospect, Seafoam Mining District, Custer County, Idaho, USA
10.1km (6.3 miles) ⓘWest Side Claim, Seafoam Mining District, Custer County, Idaho, 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 7, 2026 01:50:16
Go to top of page