IMA mineral species

Heidornite

Na₂Ca₃B₅O₈(SO₄)₂Cl(OH)₂

Borate mineral.

Heidornite specimen
Heidornite-Kohnstein.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaNa₂Ca₃B₅O₈(SO₄)₂Cl(OH)₂
ElementsNa, Ca, B, O, S, Cl, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHdn
Nickel–Strunz class6.EC.30

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