General Information:
Chemical Formula:
Na7AlH2(CO3)4F4
Composition:
(Molecular Weight = 505.96 gm)
Sodium 31.81 % Na
Aluminum 5.33 % Al
Hydrogen 0.40 % H
Carbon 9.50 % C
Oxygen 37.95 % O
Fluorine 15.02 % F
Empirical Formula:
Na7AlH2(CO3)4F4
Environment:
Drill core in pegmatitic rock.
Locality:
Mt. Restinyon, Kola Peninsula, Russia.
Name Origin:
Namde to honor Dutch sailor Willem Barents and the sea that washes the Kola Peninsula.
Physical Properties:
Cleavage:
[001] Perfect, [100] Perfect
Color:
colorless.
Density:
2.56
Diaphaniety:
Transparent
Habits:
Anhedral Grains - Granular minerals without the expression of crystal shapes, ,
Hardness:
3 - Calcite
Luster:
Vitreous - Pearly
Streak:
white
More details...