Properties:

* Chemical Formula: Fe₂O₃

* Color: Reddish-brown to black

* Streak: Reddish-brown

* Hardness: 5.5-6.5

* Cleavage: None

* Fracture: Conchoidal

* Luster: Metallic to earthy

Occurrence:

Hematite is a common iron ore mineral found in sedimentary, metamorphic, and igneous rocks. It is a major source of iron for steel production.

Other Examples of Oxide Minerals:

* Corundum (Al₂O₃)

* Magnetite (Fe₃O₄)

* **Rutile (TiO₂)

* **Cassiterite (SnO₂)

* Chromite (FeCr₂O₄)

* Goethite (FeO(OH))

* Ilmenite (FeTiO₃)