Barberiite

General Information:
 Chemical Formula:
(NH4)BF4
 Composition:
(Molecular Weight = 104.84 gm)
Boron 10.31 % B 
Hydrogen 3.85 % H 
Nitrogen 13.36 % N 
Fluorine 72.48 % F 
 Empirical Formula:
(NH4)BF4
 IMA Status:
Approved IMA 1992
Physical Properties:
 Cleavage:
[100] Perfect, [010] Good, [001] Good
 Color:
colorless.
 Density:
1.89
 Diaphaniety:
Transparent
 Hardness:
1 - Talc
 Luster:
Vitreous (Glassy)
 Streak:
white
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