General Information:
Chemical Formula:Fe2O3
Composition:(Molecular Weight = 159.69 gm)Iron 69.94 %
FeOxygen 30.06 %
O Empirical Formula: Fe3+2O3
Environment:Magmatic, hydrothermal, metamorphic and sedimentary.
IMA Status:Accepted IMA 1980
Locality:Matto Grosso, Brazil. Mesabi iron ore range, Minnesota, USA.
Name Origin:From the Greek, haimatites, "bloodlike'" in allusion to vivid red color of the powder.
Physical Properties: Cleavage:None
Color:reddish gray, black, or blackish red.
Density:5.3
Diaphaniety:Subtranslucent to opaque
Habits:Tabular - Form dimensions are thin in one direction., Blocky - Crystal shape tends to be equant (e.g. feldspars)., Earthy - Dull, clay-like texture with no visible crystalline affinit ies, (e.g. howlite).
Hardness:6.5 - Pyrite
Luminescence:None.
Luster:Metallic
Streak:reddish brown
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