General Information:
Chemical Formula:
(Na,K)6Ca2Al6Si6O24Cl4
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[001] Perfect, [110] Distinct
Color:
colorless.
Density:
2.335
Diaphaniety:
Transparent
Hardness:
5 - Apatite
Luster:
Vitreous (Glassy)
Streak:
white
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