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Dominant species
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Magnesioferrite
Chemical
Formula
Mg(Fe3+)2O4
Species
Oxides & Hydroxides
Crystal
System
Isometric
Mohs
Scale
5-6
Specific
Gravity
4.51
Color
Black to brownish black
Streak
Dark red
Luster
Metallic, Sub-Metallic
Refractive
Index
n = 2.38
Diaphaneity
Opaque
Cleavage
On 111]
Fracture
Irregular/Uneven
Crystal Habit:As octahedral crystals, massive granular
Magnesioferrite4558
Magnesioferrite4558
Magnesioferrite4556
Magnesioferrite4556
Magnesioferrite4553
Magnesioferrite4553
Magnesioferrite4550
Magnesioferrite4550
Magnesioferrite4545
Magnesioferrite4545
Magnesioferrite4540
Magnesioferrite4540
Magnesioferrite4530
Magnesioferrite4530
Magnesioferrite4527
Magnesioferrite4527
Magnesioferrite4510
Magnesioferrite4510