Hematite
From Wikinfo
[[de:H�matit]]
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Hematite carving, 5 cm (2 in) long |
Hematite is the mineral form of Iron (III) oxide, (Fe2O3), one of several iron oxides. The ore sometimes contains slight amounts of titanium.
A very common mineral, coloured black to gray, brown to reddish brown, or red. It is mined as the main ore of iron.
Varieties are: Bloodstone, Iron Rose, Kidney Ore, Martite, Paint Ore, Specularite (Specular Hematite), Rainbow Hematite and Titano-hematite.
Hematite can formed by aqueous processses, weathering processes, or without water. The MER-B will use its instruments to test how the hematite found on Mars at Meridiani Planum was formed.
See also
References
- Adapted from the Wikipedia article, "Hematite" http://en.wikipedia.org/wiki/Hematite, used under the GNU Free Documentation License
