General Information:
Chemical Formula:
Na12Ca3Fe+++2Si12O36
Composition:
(Molecular Weight = 1,420.81 gm)
Sodium 19.42 % Na
Calcium 8.46 % Ca
Iron 7.86 % Fe
Silicon 23.72 % Si
Oxygen 40.54 % O
Empirical Formula:
Na12Ca3Fe3+2Si12O36
Environment:
Found in eudialyte in an alkalic pegmatite.
IMA Status:
Approved IMA 1979
Locality:
Khibiny massif, near Lake Imandra, Kola Peninsula, Russia.
Name Origin:
Named for the locality.
Physical Properties:
Color:
honey yellow.
Density:
2.93
Diaphaniety:
Transparent
Habits:
Anhedral Grains - Granular minerals without the expression of crystal shapes, ,
Hardness:
5-5.5 - Apatite-Knife Blade
Luster:
Vitreous (Glassy)
Streak:
white
More details...