Panichiite

panichiite

godovikovite

demicheleite-(Cl)

demicheleite-(Br)

Images

Formula: (NH₄)₂SnCl₆
Chloride, tin-bearing mineral
Crystal System: Isometric
Specific gravity: 2.43 measured, 2.423 calculated for the empirical formula
Streak: White
Colour: Colourless
Luminescence: No fluorescence under short wave or long wave UV
Solubility: Not hygroscopic
Environments

Fumeroles

Panichiite was approved in 2008 and to date (September 2024) it has been unambiguously identified only from the type locality

Localities

At the type locality, La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Metropolitan City of Messina, Sicily, Italy, panichiite was found on a pyroclastic breccia collected at the rim of an active medium-temperature (about 250°C) intracrater fumarole. It forms aggregates of colourless octahedral crystals up to 0.2 mm in length, and is associated with alunite, anhydrite, bismuthinite, godovikovite, demicheleite-(Br), demicheleite-(Cl), adranosite and an ammomium bismuth chloride (CM 47.2.367-372).
Panichiite from La Fossa - Image

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