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Tounkite
Type Locality
Malo-Bystrinskoe lazurite deposit, Malaya Bystraya River Valley, Slyudyanka (Sludyanka), Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia
Mineral Data
(Na,Ca,K)
8
(Al
6
Si
6
O
24
)(SO
4
)
2
Cl·H
2
O
Strunz:
9.FB.05
Physical Properties
Crystal System:
Hexagonal
Streak:
White
Hardness:
5.0 - 5.5
