Citation: Angel, R. J. (1988). High-pressure structure of anorthite Sample: P = 1 bar. American Mineralogist, 73, pp. 1114-1119.
Formula: Al Ca0.5 O4 Si
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 O64 Si16 (Al O4 Si)
Multiplicity: 1
Coordination sequences: