Sodalite
Na8(Al6Si6O24)Cl2
Sodium aluminum silicate with chlorine
Hardness: 5.5-6
Tectosilicate
Isometric Hextetrahedral System
Most often blue, less commonly purple, pink, gray, green, brown, white, and colorless
Sodalite
Na8(Al6Si6O24)Cl2
Sodium aluminum silicate with chlorine
Hardness: 5.5-6
Tectosilicate
Isometric Hextetrahedral System
Most often blue, less commonly purple, pink, gray, green, brown, white, and colorless