IMA mineral species

Augite

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O

Pyroxene mineral.

Green Purple Brown Black Gray White & Clear

Augite specimen — Augite Rwanda.jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Monoclinic

Chemical formula	(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O
Elements	Ca, Na, Mg, Fe, Al, Ti, Si, O
Crystal system	Monoclinic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Aug
Nickel–Strunz class	9.DA.15

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

Varieties & related stones

Fassaite

Learn more

Augite on Mindat.org
Wikipedia article
Wikidata item Q192141 (source of this page's data – you can correct it there)