Wüstite

Formula: FeO

Origin of name: for E. Wüst, German geologist

 

Crystal system: cubic

Crystal class: 4/m -3 2/m

Twinning:

Unit cell: 

 

Colour: gray with greenish tint in reflected light

Diaphaneity: 

Luster: 

Habit: 

Hardness

Specific gravity: 5.88

Cleavage: 

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments: from meteorites and native iron

 

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