Qilianshanite

General Information:
 Chemical Formula:
NaH4(CO3)(BO3)·2(H2O)
 Composition:
(Molecular Weight = 240.68 gm)
Sodium 9.55 % Na
Boron 8.98 % B 
Hydrogen 3.35 % H 
Carbon 4.99 % C 
Oxygen 73.12 % O 
 Empirical Formula:
NaH4(CO3)(BO3)·2(H2O)
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[100] Perfect, [010] Perfect
 Color:
colorless.
 Density:
1.706
 Diaphaniety:
Transparent
 Hardness:
2 - Gypsum
 Luster:
Vitreous (Glassy)
 Streak:
white
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