IMA mineral species

Hephaistosite

TlPb₂Cl₅

Chloride mineral.

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

Properties

Chemical formulaTlPb₂Cl₅
ElementsTl, Pb, Cl
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHep
Nickel–Strunz class3.AA.60

“—” 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.