Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for 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

Chalcedony from
Bretz Mine, Opalite Mining District (McDermitt Mining District), Malheur County, Oregon, USA


Locality type:Mine
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 Bretz Mine, Opalite Mining District (McDermitt Mining District), Malheur County, Oregon, USA
Data Identifiers
Mindat Occurrence Record ID:146165
Long-form Identifier:1:3:146165:7
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
15.7km (9.8 miles) ⓘMcDermitt Mine, Opalite Mining District, Humboldt County, Nevada, USA
16.5km (10.2 miles) ⓘCordero Mine, Opalite Mining District, Humboldt County, Nevada, USA
17.2km (10.7 miles) ⓘMcDermitt Dendrite, Malheur County, Oregon, USA
22.2km (13.8 miles) ⓘDisaster Peak property (Nevada Cinnabar Group; Bretchell Mercury Deposit), Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA
35.8km (22.2 miles) ⓘMontana Mountains deposit, Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA
35.8km (22.2 miles) ⓘKings Valley, Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA
36.2km (22.5 miles) ⓘCaustin mine, National Mining District, Humboldt County, Nevada, USA
40.0km (24.9 miles) ⓘBell vein, Buckskin Mountain, National Mining District, Humboldt County, Nevada, USA
40.4km (25.1 miles) ⓘBuckskin Mountain, National Mining District, Humboldt County, Nevada, USA
40.5km (25.2 miles) ⓘMcCormick group, National Mining District, Humboldt County, Nevada, USA
References
Nevada Bureau of Mines and Geology NBMG Open-File Report 96-3 By Stephen B. Castor, Christopher D. Henry, Lisa A. Shevenell
Johnson, H. C. 1971 Western Gem Hunters Atlas, 11th Edition: Cy Johnson & son, Susanville, Calif., 95 p.
(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 5, 2026 04:55:00
Go to top of page