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

Erdite from
Coyote Peak, Humboldt County, California, USA


06440320017271922619013.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
01730230017272010983621.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
08272450017272010996707.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
05354650017272011018102.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
06440320017271922619013.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
00506190017367689146048.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
05369900017367689149579.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
09432380017367689149014.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
06440320017271922619013.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
04864420017272011035055.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
08272450017272010996707.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
05354650017272011018102.jpg
Erdite

Coyote Peak, Humboldt County, California, USA
Locality type:Peak
Classification
Species:Erdite
Formula:NaFeS2 · 2H2O
Comments:Occurs as tiny patches peripheral to a large knot of pyrrhotite and rasvumite. Commonly associated with fine-grained, euhedral magnetite crystals.
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Barytolamprophyllite
Magnetite
Pyrrhotite
Rasvumite
Schorlomite
Sodalite
Vishnevite
Associated Minerals Based on Photo Data:
Nepheline5
Aegirine5
Phlogopite5
Schorlomite3
Coyoteite2
Rasvumite2
Orickite1
Magnetite1
Pyrrhotite1
Data
Mineral Data:Click here to view Erdite data
Locality Data:Click here to view Coyote Peak, Humboldt County, California, USA
Photo GalleryView Gallery (11 photos)
Data Identifiers
Mindat Occurrence Record ID:4977
Long-form Identifier:1:3:4977:1
GUID (UUID V4):0
References
Czamanske, Gerald K., Leonard, B. F., Clark, Joan R. (1980) Erdite, a new hydrated sodium iron sulfide mineral. American Mineralogist, 65 (5-6) 509-515
Konnert, Judith A., Evans, H. T. (1980) The crystal structure of erdite, NaFeS2·2H2O. American Mineralogist, 65 (5-6) 516-521
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Erd, Richard C.; Czamanske, Gerald K. (1983) Orickite and coyoteite, two new sulfide minerals from Coyote Peak, Humboldt County, California. American Mineralogist, 68 (1-2). 245-254
 
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 00:33:04
Go to top of page