Mineralogy Database

Erdite Mineral Data

Search Webmineral :

General Erdite Information

Help on Chemical  Formula: Chemical Formula: NaFeS2•2(H2O)
Help on Composition: Composition: Molecular Weight = 179.00 gm
   Sodium    12.84 %  Na
   Iron      31.20 %  Fe
   Hydrogen   2.25 %  H
   Sulfur    35.83 %  S
   Oxygen    17.88 %  O
            100.00 % 
Help on Empirical Formula: Empirical Formula: NaFe2+S2•2(H2O)
Help on Environment: Environment: Found in abundance, typically with other sulfides and fine grained magnetite, in discrete, late segregations within a mafic alkalic diatreme.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Coyote Peak diatreme, 16 miles SW of Orick, Humboldt Co. California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Richard C. Erd (1924- ), mineralogist with the U.S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Erdite Say ERDITE
Help on Synonym: Synonym: ICSD 100181
  PDF 33-1253