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

Marcasite from
Henry Sloan No. 1 Mine, Willow Springs, Coconino County, Arizona, USA


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Comments:Occurs with uraninite in calcite cement in sandstone bordering carbonaceous fossil wood.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Calcite
Uraninite
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Henry Sloan No. 1 Mine, Willow Springs, Coconino County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:233108
Long-form Identifier:1:3:233108:9
GUID (UUID V4):0
Nearest other occurrences of Marcasite
26.7km (16.6 miles) ⓘAlyce Tolino Mine (Max Johnson No. 9), Cameron, Cameron Mining District, Coconino County, Arizona, USA
29.7km (18.5 miles) ⓘHuskon Mines (Huskon group), Cameron, Cameron Mining District, Coconino County, Arizona, USA
34.7km (21.6 miles) ⓘYazzie No. 102 Mine, Cameron, Cameron Mining District, Coconino County, Arizona, USA
40.2km (25.0 miles) ⓘHuskon No. 11 Mine (Charles Huskon #11; Huskon #11), Huskon Mines (Huskon group), Cameron, Cameron Mining District, Coconino County, Arizona, USA
67.3km (41.8 miles) ⓘPinyon Plain Mine, Tusayan, Francis Mining District, Coconino County, Arizona, USA
67.6km (42.0 miles) ⓘOrphan Mine (Orphan lode), Grand Canyon Village, Orphan Mining District, Coconino County, Arizona, USA
References
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.406
 
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 12:04:58
Go to top of page