Natrite

General Information: Chemical Formula:Na2CO3 Composition:(Molecular Weight = 105.99 gm)Sodium 43.38 % NaCarbon 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:whiteMore details...