General Information:
Chemical Formula:(Mn,Fe++,Mg)(Al,Fe+++)2O4
Locality:Bald Knob near the town of Galax, Alleghany co., North Carolina, USA.
Name Origin:Named after its location.
Physical Properties: Cleavage:[???] Indistinct
Color:brown red or black.
Density:4.23
Diaphaniety:Opaque
Habits:Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:7.5 - Garnet
Luminescence:Non-fluorescent.
Luster:Metallic
Streak:brownish red
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