Citation: Horst, W.; Tagai, T.; Korekawa, M.; Jagodzinski, H. (1981). Modulated structure of a plagioclase An52: Theory and structure determination. Zeitschrift fuer Kristallographie (149,1979-), 157, pp. 233-250.
Formula: Al1.46 Ca0.347 Na0.685 O8 Si2.54
Chemical name: Na.685 Ca.347 Al1.46 Si2.54 O8
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: