General Information:
Chemical Formula:
K2SiF6
Composition:
(Molecular Weight = 220.27 gm)
Potassium 35.50 % K
Silicon 12.75 % Si
Fluorine 51.75 % F
Empirical Formula:
K2SiF6
Environment:
Volcanic fumaroles.
Locality:
Crater of Vulcano, Lipari Islands.
Physical Properties:
Cleavage:
[???] Good, [???] Good, [???] Good
Color:
colorless, white, or gray.
Density:
2.665
Diaphaniety:
Transparent
Habits:
Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite)., Concretionary - Rounded massive fine-grained materials.,
Hardness:
2.5 - Finger Nail
Luster:
Vitreous - Greasy
Streak:
white
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