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Chemical Composition : Fe2O3 [Iron Oxide]
Hardness : 5.0 – 6.5
Specific Gravity (Density) : VHN100=1000 – 1100 kg/mm2
Refractive Index : 2.87 – 3.22 Uniaxial ( – )
Hematite is a common mineral, but not often faceted as a gem because it is opaque. It can commonly be found as attractive, faceted beads and carved cameos however. Hematite powder was used by Native Americans as a face paint called red ochre. The polishing compound known as rouge used on gold and silver is powdered Hematite. Faceted or cabochon Hematites are very attractive because of the silvery black color and mirror-like polish.