Crystal Structure of Sodium calcium magnesium iron titanium alumosilicate *


Mineralogical Society of America: Special Papers (1969) 2, 31-50


Chemical nameSodium calcium magnesium iron titanium alumosilicate *
Mineral nameAugite
FormulaAl0.34Ca0.6Fe0.2Mg0.9Na0.1O6Si1.82
a (Å)9.699(1)
b (Å)8.844(1)
c (Å)5.272(1)
α (°)90
β (°)106.97(2)
γ (°)90
V (Å3)432.5
Space groupC 1 2/c 1