IMA mineral species

Marinellite

(Na,K)₄₂Ca₆(Al₆Si₆O₂₄)₆(SO₄)₈Cl₂ * 3H₂O

Tectosilicate mineral.

Marinellite specimen
Marinellite-109571.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula(Na,K)₄₂Ca₆(Al₆Si₆O₂₄)₆(SO₄)₈Cl₂ * 3H₂O
ElementsNa, K, Ca, Al, Si, O, S, Cl, H
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolMrn
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