General Information:
Chemical Formula:
(K,Na)2(Li,Fe+++,Al)3ZrSi12O30
Composition:
(Molecular Weight = 1,049.22 gm)
Potassium 5.59 % K
Sodium 1.10 % Na
Lithium 1.19 % Li
Zirconium 8.69 % Zr
Aluminum 0.77 % Al
Iron 4.79 % Fe
Silicon 32.12 % Si
Oxygen 45.75 % O
Empirical Formula:
K1.5Na0.5Li1.8Fe3+0.9Al0.3ZrSi12O30
IMA Status:
Approved IMA 1968
Physical Properties:
Cleavage:
[0001] Perfect
Color:
violet.
Density:
2.9
Diaphaniety:
Transparent
Hardness:
7 - Quartz
Luster:
Vitreous (Glassy)
More details...