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Hematite

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photo
Courtesy of Wayne State University
Hematite is a common, widely distributed mineral of iron. It varies greatly in appearance, sometimes forming tabular crystals, rounded masses, or small, sparkly crystals. In the presence of oxygen, iron minerals weather to a rust color and may look earthy or metallic. Hematite´s distinguishing property is its red-brown streak. This rock is from Wayne State University's Thomas Edison Mineral Collection.

Color: black to red
Grains/crystals:
Linearity: sometimes
Density: 4.9­5.3 g/cc

Other Links:

Questions:

  1. Why do hematite and ilmenite look different if they are both iron minerals?
  2. Has hematite been found on the Moon?

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