General Information:
Chemical Formula:(K,Na)3Na(SO4)2
Composition:(Molecular Weight = 320.33 gm)Potassium 27.46 %
K Sodium 12.56 %
NaSulfur 20.02 %
S Oxygen 39.96 %
O Empirical Formula: K2.25Na1.75(SO4)2
Physical Properties: Cleavage:[1011] Good
Color:blue, colorless, green, gray, or gray blue.
Density:2.7
Diaphaniety:Transparent to Opaque
Habits:Massive - Uniformly indistinguishable crystals forming large masses., Encrustations - Forms crust-like aggregates on matrix.,
Hardness:3 - Calcite
Luminescence:Non-fluorescent.
Luster:Vitreous - Resinous
Streak:white
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