Hematite (Iron Oxide) (Sample #28)
Colour: Black, grey, red, brown, silver
Hardness: 5-5.6
Streak: Red to reddish brown
Luster: Metallic to earthy
Magnetic: No
Conductive: Yes
Cleavage: None
Relative Density: 5.0 - 5.3
Distinguishing Characteristics: It is often found with silica to form a banded iron formation or BIF. Weird note: that Mars has an abundance of hematite which turns the soil reddish brown.
Uses: One of the world's most important sources of iron ore. Hematite is also an important pigment in paints. It can be used as a polishing agent or polished or tumbles as a gemstone.
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