IMA mineral species

Omphacite

(Ca,Na)(Mg,Fe,Al)Si₂O₆

Clinopyroxene mineral, solid solution of jadeite (25%-75%), augite (25%-75%), and aegirine (0%-25%).

Green White & Clear

Omphacite specimen — Eclogite Norway.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	(Ca,Na)(Mg,Fe,Al)Si₂O₆
Elements	Ca, Na, Mg, Fe, Al, Si, O
Crystal system	Monoclinic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Omp
Nickel–Strunz class	9.DA.20

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

Learn more

Omphacite on Mindat.org
Wikipedia article
Wikidata item Q745864 (source of this page's data – you can correct it there)