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