Natroniobite

General Information:
 Chemical Formula:
NaNbO3
 Composition:
(Molecular Weight = 163.89 gm)
Sodium 14.03 % Na
Niobium 56.69 % Nb
Oxygen 29.29 % O 
 Empirical Formula:
NaNbO3
 Environment:
Dolomitic carbonatites.
 IMA Status:
Approved IMA 1962
 Locality:
Lesnaya Baraka and Sallanlatvi massifs, Kola Peninsula, Russa.
 Name Origin:
Named for the composition.
Physical Properties:
 Color:
yellow, brownish, or blackish.
 Density:
4.4
 Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., ,
 Hardness:
5.5-6 - Knife Blade-Orthoclase
 Streak:
gray
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