Citation: Harlow, G. E. (1982). The anorthoclase structures: The effects of temperature and composition Note: Or = 22.3, T = 23 C. American Mineralogist, 67, pp. 975-996.
Formula: Al Ca0.069 K0.224 Na0.71 O8 Si3
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 O32 Si16 (Al O2 Si)
Multiplicity: 1
Coordination sequences: