IMA mineral species

Sacrofanite

(Na₆₁K₁₉Ca₃₂)(Si₈₄Al₈₄O₃₃₆)(SO₄)₂₆Cl₂F₆*₂H₂O

Tectosilicate mineral.

White & Clear

Properties

🔷 Hexagonal✏️ streak white
Chemical formula(Na₆₁K₁₉Ca₃₂)(Si₈₄Al₈₄O₃₃₆)(SO₄)₂₆Cl₂F₆*₂H₂O
ElementsNa, K, Ca, Si, Al, O, S, Cl, F, H
Crystal systemHexagonal
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolScf
Nickel–Strunz class9.FB.05

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

🌍 Where it's found

Type locality (where it was first described): Sacrofano caldera, Italy