General Information:
Chemical Formula:(Na,Ca,K)6(Si,Al)12O24[(SO4),(CO3),Cl2]2-4·n(H2O)
Physical Properties: Cleavage:[1010] Perfect, [0001] Indistinct
Color:colorless, yellow, white, light blue, or light gray.
Density:2.32 - 2.42, Average = 2.37
Diaphaniety:Transparent to Translucent
Hardness:5-6 - Between Apatite and Orthoclase
Luster:Vitreous - Pearly
Streak:white
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