General Information:
Chemical Formula:(Na,K,Ca)2Al2Si7O18·7(H2O)
Composition:(Molecular Weight = 694.19 gm)Potassium 1.69 %
K Sodium 1.99 %
NaCalcium 0.58 %
CaAluminum 7.77 %
AlSilicon 28.32 %
SiHydrogen 2.03 %
H Oxygen 57.62 %
O Empirical Formula: Na0.6K0.3Ca0.1Al2Si7O18·7(H2O)
IMA Status:Approved IMA 1974
Physical Properties: Cleavage:[???] Perfect
Color:white or pink.
Density:2.13
Diaphaniety:Transparent to Translucent
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous (Glassy)
Streak:white
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