Citation: Bailey, S. W. (1963). Polymorphism of the kaolin minerals. American Mineralogist, 48, pp. 1196-1209.
Formula: Al2 H4 O9 Si2
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Al4 O18 Si4 (Al2 O9 Si2)
Multiplicity: 1