Minerals identify

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Wüstite

Oxide mineral

Wüstite (Fe) is a mineral form of iron(II) oxide and native iron. It has a gray color with a greenish tint in reflected light. Wüstite crystallizes in the isometric-hexoctahedral crystal system in opaque to translucent metallic grains. It has a Mohs hardness of 5 to 5.5 and a specific gravity of 5.88. Wüstite is a typical example of a non-stoichiometric compound.

Wüstite was named for Fritz Wüst (1860–1938), a German metallurgist and founding director of the Kaiser-Wilhelm-Institut für Eisenforschung (presently Max Planck Institute for Iron Research GmbH

In addition to the type locality in Germany, it has been reported from Disko Island coalfield, Jharkhand in a number of kimberlite pipes. It also is reported from deep sea manganese nodules.

Its presence indicates a highly reducing environment.

Identification

Color of mineral

Grey
Yellow
White
Brown

Mohs scale ( mineral hardness )

5

Density ( specific gravity )

1.735

Crystal ( diaphaneity )

Cubic