IMA mineral species

Lafossaite

Tl(Cl,Br)

Halide mineral.

Lafossaite specimen — Lafossaite - Vulcano Island, Eolian Island, Lipari, Italy (Thomas Witzke).jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	Tl(Cl,Br)
Elements	Tl, Cl, Br
Crystal system	Cubic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Lfs
Nickel–Strunz class	3.AA.25

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

🌍 Where it's found

Type locality (where it was first described): La Fossa crater, Italy

Type locality
Notable source / deposit
Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.

Learn more

Lafossaite on Mindat.org
Wikidata item Q1800195 (source of this page's data – you can correct it there)