General Information:
Chemical Formula:
Fe5N2
Composition:
(Molecular Weight = 307.25 gm)
Iron 90.88 % Fe
Nitrogen 9.12 % N
Empirical Formula:
Fe0+5N2
Environment:
Thin coating on lava.
Locality:
Mt. Etna and Mt. Vesuvius, Italy.
Name Origin:
Named for its composition (Greek, "sideros" = iron).
Physical Properties:
Color:
silver white.
Density:
3.147
Diaphaniety:
Opaque
Habits:
Thin - Flat dimensioned crystals., Encrustations - Forms crust-like aggregates on matrix.,
Luster:
Metallic
More details...