Description

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Michigan
Hematite is an oxide of iron, Fe2O3, which is used as an ore of iron. Near Lake Superior many millions of tons a year are mined and used for this purpose. These deposits were deposited as sediments from streams and rivers. The name hematite is derived from the Greek word for blood, as sometimes hematite can be red. Hematite can be found in many forms. It can sometimes come in plate or column shaped crystals. It can also be granular. In color it can be red or a reflective silvery black called specular hematite as shown here. When heated, it can turn black, reverting to its previous color when it cools.