IMA mineral species

Polydymite

Ni²⁺Ni³⁺₂S₄

Spinel, sulfide mineral.

Gray

Polydymite specimen
Polydymite-614287.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaNi²⁺Ni³⁺₂S₄
ElementsNi, S
Crystal systemCubic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPld
Nickel–Strunz class2.DA.05

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

🌍 Where it's found

Type locality (where it was first described): Grüne Au Mine, Germany