Natrite

General Information:
 Chemical Formula:
Na2CO3
 Composition:
(Molecular Weight = 105.99 gm)
Sodium 43.38 % Na
Carbon 11.33 % C 
Oxygen 45.29 % O 
 Empirical Formula:
Na2(CO3)
 Environment:
Na analog of zabuyelite.
 IMA Status:
Approved IMA 1982
 Locality:
Mt. Karnasurt, Lovozero massif, Kola Peninnsula, Russia.
 Name Origin:
Named for the composition.
Physical Properties:
 Cleavage:
[001] Perfect, [100] Good, [110] Good
 Color:
colorless, yellow orange, white, or pink.
 Density:
2.54
 Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Pseudo Hexagonal - Crystals show a hexagonal outline.,
 Hardness:
3.5 - Copper Penny
 Luster:
Vitreous - Dull
 Streak:
white
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