IMA mineral species

Dzharkenite

FeSe₂

Selenide mineral.

Dzharkenite specimen
Dzharkenite.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness5
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💅🪙🍶🔪💎

A steel knife scratches it, it won't scratch glass.

⚖ Density7.206 g/cm³
Very heavy
🔷 Cubic✏️ streak black
Chemical formulaFeSe₂
ElementsFe, Se
Crystal systemCubic
Mohs hardness5
Density7.206 g/cm³
Streakblack
Color—
IMA symbolDzh
Nickel–Strunz class2.EB.05a

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

🌍 Where it's found

Type locality (where it was first described): Dzharkenskaya depression, Kazakhstan