Citation: Angel, R. J.; Gatta, G. C.; Boffa Ballaran, T.; Carpenter, M. A. (2008). The mechanism of coupling in the modulated structure of nepheline Note: natural sample Note: T = 290 K. The Canadian Mineralogist, 46, pp. 1465-1476.
Formula: Al3.84 K0.57 Na3.24 O16 Si4.16
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 O36 Si16 (Al4 O9 Si4)
Multiplicity: 1