IMA mineral species

Coesite

SiO₂

Silica mineral, rare polymorph of quartz.

White & Clear

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

Properties

Chemical formulaSiO₂
ElementsSi, O
Crystal systemMonoclinic
Mohs hardness—
Density2.634 g/cm³
Streakwhite
Color—
IMA symbolCoe
Nickel–Strunz class4.DA.35

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