Citation: Ralph, R. L.; Finger, L. W.; Hazen, R. M.; Ghose, S. (1984). Compressibility and crystal structure of andalusite at high pressure 37 kbar continuous scan. American Mineralogist, 69, pp. 513-519.
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: