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Thermessaite
Type Locality
La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy
Mineral Data
K
2
(AlF
3
)(SO
4
)
Strunz:
3.CG.25
Physical Properties
Streak:
white
Hardness:
0.0
Tenacity:
brittle
