IMA mineral species

Esseneite

CaFe³⁺AlSiO₆

Pyroxene mineral.

RedBrown

Esseneite specimen
Esseneite.webp · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness6
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Scratches glass; quartz scratches it.

Chemical formulaCaFe³⁺AlSiO₆
ElementsCa, Fe, Al, Si, O
Crystal systemMonoclinic
Mohs hardness6
Density—
Streak—
Color—
IMA symbolEss
Nickel–Strunz class9.DA.15

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