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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Atomic Mass : 55.847
Atomic Number : 26
Name Origins: Anglo-Saxon, iron; Latin, ferrum.
Year Discovered : Prehistoric.
Discovery Credits : Known to ancient civilizations.
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