General Information:
Chemical Formula:(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3·18(H2O)
IMA Status:Approved IMA 1959
Physical Properties:
Cleavage:[010] Distinct
Color:colorless, greenish gray, or light gray green.
Density:2.6
Diaphaniety:Transparent
Hardness:4-5 - Fluorite-Apatite
Streak:white
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