Citation: Yang, H.; Hazen, R. M.; Finger, L. W.; Prewitt, C. T.; Downs, R. T. (1997). Compressibility and crystal structure of sillimanite, Al2SiO5, at high pressure Sample: P = 5.29 GPa. Physics and Chemistry of Minerals, 25, pp. 39-47.
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: