General Information:
Chemical Formula:
K2Na4Ca3Ti2Be4Si12O38
Composition:
(Molecular Weight = 1,367.20 gm)
Potassium 5.72 % K
Sodium 6.73 % Na
Calcium 8.79 % Ca
Titanium 7.00 % Ti
Beryllium 2.64 % Be
Silicon 24.65 % Si
Oxygen 44.47 % O
Empirical Formula:
K2Na4Ca3Ti2Be4Si12O38
Environment:
In a vein in alkaline syenite pegmatite and in kalsilite syenite.
IMA Status:
Approved IMA
Locality:
Murunsky alkaline massif, Aldan shield, Russia.
Name Origin:
For Prof. M. M. Odintsova (1911-1979), a founder of the Institute of the Earth's Crust, Irkutsk.
Physical Properties:
Cleavage:
None
Color:
colorless, light pink, or slightly brownish pink.
Density:
2.94 - 2.98, Average = 2.96
Diaphaniety:
Transparent
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
Hardness:
5-5.5 - Apatite-Knife Blade
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...