IMA mineral species

Greigite

Fe²⁺Fe³⁺₂S₄

Iron(II,III) sulfide mineral of spinel structure.

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Properties

Chemical formulaFe²⁺Fe³⁺₂S₄
ElementsFe, S
Crystal systemCubic
Mohs hardness—
Density4.049 g/cm³
Streak—
Color—
IMA symbolGrg
Nickel–Strunz class2.DA.05

“—” means no reliable value in Wikidata yet. Check Mindat for full data.