Saliotite

Saliotite is a colorless to pearl white mineral comprised of a combination of the minerals cookeite and paragonite. Saliotite was discovered in 1994 at Andalusia, Spain and named after Pierre Saliot, a French geologist.It has the chemical formula Na0.5Li0.5Al3AlSi3O10(OH)5, has perfect cleavage, a pearly luster and leaves a white streak. Its crystal structure is monoclinic and it is a soft mineral with a hardness rated 2-3 on the Mohs Scale.
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General Information:
 Chemical Formula:
Na0.5Li0.5Al3AlSi3O10(OH)5
 Composition:
(Molecular Weight = 452.18 gm)
Sodium 2.54 % Na
Lithium 0.77 % Li
Aluminum 23.87 % Al
Silicon 18.63 % Si
Hydrogen 1.11 % H 
Oxygen 53.07 % O 
 Empirical Formula:
Na0.5Li0.5Al4Si3O10(OH)5
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[001] Perfect
 Color:
colorless or pearl white.
 Density:
2.75
 Diaphaniety:
Transparent to Translucent
 Hardness:
2-3 - Gypsum-Calcite
 Luster:
Pearly
 Streak:
white
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