General Information:
Chemical Formula:
Fe
Composition:
(Molecular Weight = 55.85 gm)
Iron 100.0 % Fe
Empirical Formula:
Fe0+
Environment:
In meteorites and rarely basalts that have intruded carbon-rich sediments.
IMA Status:
Approved IMA (Dana # Added)
Locality:
Asteroid fragments and in German and Greenland basalts.
Name Origin:
Probably Anglo-Saxon in origin.
Physical Properties:
Cleavage:
[001] Perfect, [010] Perfect, [100] Perfect
Color:
iron black, dark gray, or steel gray.
Density:
7.3 - 7.9, Average = 7.6
Diaphaniety:
Opaque
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Granular - Generally occurs as anhedral to subhedral crystals in matrix., Disseminated - Occurs in small, distinc t particles dispersed in matrix.
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
None.
Luster:
Metallic
Streak:
gray
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