General Information:
Chemical Formula:
(K,Na)2-3Ca28(Zn4Al4Si40)O112(OH)16
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[0001] Perfect
Color:
colorless, gray white, grayish black, or white.
Density:
2.93
Diaphaniety:
Transparent
Hardness:
4 - Fluorite
Luster:
Vitreous (Glassy)
Streak:
white
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