General Information:
Chemical Formula:
Na2Ca4(PO4)3F
Composition:
(Molecular Weight = 510.20 gm)
Sodium 9.01 % Na
Calcium 31.42 % Ca
Phosphorus 18.21 % P
Oxygen 37.63 % O
Fluorine 3.72 % F
Empirical Formula:
Na2Ca4(PO4)3F
Environment:
Found in a drill core.
IMA Status:
Approved IMA 1981
Locality:
Drill core from the valley of the Vounnimi River, Khibina alkalic massif, Kola Peninuula, Russia.
Name Origin:
Named for the arctic region where it was found.
Physical Properties:
Cleavage:
[001] Perfect
Color:
colorless.
Density:
3.11 - 3.13, Average = 3.12
Diaphaniety:
Transparent
Hardness:
5 - Apatite
Luster:
Vitreous - Pearly
Streak:
white
More details...