General Information:
Chemical Formula:
MgFe+++2O4
Composition:
(Molecular Weight = 200.00 gm)
Magnesium 12.15 % Mg
Iron 55.85 % Fe
Oxygen 32.00 % O
Empirical Formula:
MgFe3+2O4
Environment:
Contact metasomatic.
Locality:
Vesuvius and Stromboli, Italy.
Name Origin:
Named after its chemical composition of magnesium and ferric iron.
Physical Properties:
Cleavage:
None
Color:
brownish black or black.
Density:
4.6 - 4.7, Average = 4.65
Diaphaniety:
Opaque
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:
6-6.5 - Orthoclase-Pyrite
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
dark red
More details...