Mineral Factbook

Wüstite

FeOIMA symbol: Wüsgrandfathered

Wüstite is an oxide or hydroxide mineral with the formula FeO, crystallizing in the cubic system.

Photos

Wüstite specimen photo
Kristo Oks · CC BY-SA 4.0 · Commons
Wüstite specimen photo
Kristo Oks · CC BY-SA 4.0 · Commons
Wüstite specimen photo
Kristo Oks · CC BY-SA 4.0 · Commons
Wüstite specimen photo
Kristo Oks · CC BY-SA 4.0 · Commons

Physical properties

Chemistry (calculated)

Molecular weight71.84 g/molcalculated from the IMA formula
Composition (wt%)Fe 77.73%, O 22.27%

Classification

Nickel-Strunz (10th)4.AB.25Wikidata (CC0)
Nickel-Strunz (9th)4.AB.25Wikidata (CC0)
Dana (8th)4.2.1.6Wikidata (CC0)