IMA mineral species

Nitre

KNO₃

Mineral form of potassium nitrate.

White & Clear

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

Properties

Chemical formulaKNO₃
ElementsK, N, O
Crystal systemOrthorhombic
Mohs hardness—
Density2.193 g/cm³
Streakwhite
Color—
IMA symbolNit
Nickel–Strunz class5.NA.10

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