AM_Hephaistosite Formula: Tl Pb2 Cl5 Name: Hephaistosite Unit cell: 8.9477 7.9218 12.4955 90.0 90.092 90.0 , V=885.70 Space group: P121/C1 (14)

Campostrini I , Demartin F , Gramaccioli C M , Orlandi P , The Canadian Mineralogist , 46 (2008) p.701-708, Hephaistosite, TlPb2Cl5, a new thallium mineral series from La Fossa Crater,, Vulcano, Aeolian Islands, Italy, Location: La Fossa Crater, Vulcano, Aeolian Islands, Italy