Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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
Unnamed Occurrence (ARDF - ID047; east of upper Little Yetna River), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, 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 Unnamed Occurrence (ARDF - ID047; east of upper Little Yetna River), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USA
Data Identifiers
Mindat Occurrence Record ID:591936
Long-form Identifier:1:3:591936:9
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
7.8km (4.8 miles) ⓘUnnamed Occurrence (ARDF - ID048; east of upper Little Yetna River), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USA
15.6km (9.7 miles) ⓘUnnamed Occurrence (ARDF - ID049; on hill 1012), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USA
52.1km (32.4 miles) ⓘDeCourcy Mountain Mine, Iditarod Mining District, Bethel Census Area, Alaska, USA
81.9km (50.9 miles) ⓘUnnamed Occurrence (ARDF - ID088; head of Moose Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USA
83.4km (51.8 miles) ⓘUnnamed Occurrence (ARDF - ID091; above head of Moose Creek), Iditarod Mining District, Yukon-Koyukuk Census Area, Alaska, USA
References
(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. 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 9, 2026 01:34:22
Go to top of page