Wüstite

Wüstite is a mineral form of iron(II) oxide, also known as ferrous oxide. It is named after the German geologist Friedrich Wüst. Wüstite is a common mineral in the Earth's mantle and is also found in meteorites. It is a key component in the process of iron ore reduction, which is used to produce steel.

Characteristics[edit | edit source]

Wüstite is a cubic crystal system with a hardness of 5-5.5 on the Mohs scale. It is opaque and has a metallic to dull luster. Its color ranges from black to dark brown. Wüstite is not a stable mineral at the Earth's surface; it readily oxidizes to magnetite or hematite.

Formation and Occurrence[edit | edit source]

Wüstite forms under high pressure and temperature conditions in the Earth's mantle. It is also found in meteorites, particularly in those of the chondrite type. Wüstite is also a common product of the reduction of iron ores in a blast furnace, where it is mixed with other iron oxides and slag.

Uses[edit | edit source]

In industry, wüstite is used in the production of steel. The reduction of iron ore in a blast furnace produces wüstite, which is then further reduced to produce metallic iron. Wüstite is also used in the manufacture of ferrites, which are used in electronics and magnetic materials.