General Information:
Chemical Formula:
(NH4,K)AlSi2O6
Composition:
(Molecular Weight = 202.45 gm)
Potassium 4.83 % K
Aluminum 13.33 % Al
Silicon 27.75 % Si
Hydrogen 1.49 % H
Nitrogen 5.19 % N
Oxygen 47.42 % O
Empirical Formula:
(NH4)0.75K0.25AlSi2O6
IMA Status:
Approved IMA 1984
Physical Properties:
Color:
white.
Density:
2.29
Diaphaniety:
Translucent
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luster:
Vitreous - Resinous
Streak:
white
More details...