Citation: Winter, J. K.; Ghose, S. (1979). Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs T = 600 deg C. American Mineralogist, 64, pp. 573-586.
Formula: Al2 O5 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al8 O20 Si4 (Al2 O5 Si)
Multiplicity: 1
Coordination sequences: