ERDITE


Meaning of ERDITE in English

General Information:

Chemical Formula:

NaFeS2·2(H2O)

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

Empirical Formula:

NaFe2+S2·2(H2O)

IMA Status:

Approved IMA 1977

Locality:

Coyote Peak diatreme, 16 miles SW of Orick, Humboldt Co. California.

Physical Properties:

Cleavage:

[110] Good

Color:

copper red, red, or black.

Density:

2.3

Diaphaniety:

Opaque

Hardness:

2 - Gypsum

Luster:

Metallic

Streak:

black

More details...

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