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Hematite (Haematite) is the mineral form of several iron oxides. The ore sometimes contains slight amounts of titanium. When shaped into ornaments, it is often called black diamond. Hematite is a very common mineral, coloured black to steel or silver-gray, brown to reddish brown, or red. It is mined as the main ore of iron. Varieties include Bloodstone, Iron Rose, Kidney Ore, Martite, Paint Ore, Specularite (Specular Hematite), Rainbow Hematite and Titano-hematite.
Fe2O3 - Iron Oxide
Class:
Group:
Hematite
Red, gray, black
Red
Metallic, dull
Opaque
5.3
6 - 6.5
None
Uneven to Conchoidal
Thick to thin tabular crystals, massive, earthy.
Non-fluorescent
Frequency:
Common
Origin:
Magmatic, hydrothermal, sedimentary, also metamorphic, parageneses vary according to the origin.
Occurence:
Brumado, BahRa, Brazil; Wessels mine, Kuruman, South Africa; Nador, Morocco; Patagonia, Argentina; Marquette, Michigan, USA.
Application:
Ore of iron, pigments and as a mineral specimen.

 
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