Citation: Forbes, T. Z.; Burns, P. C. (2007). The crystal structures of X(NpO2)(PO4)(H2O)3 (X = K+, Na+, Rb+, NH4+) and their relationship to the autunite group Sample: KP1. The Canadian Mineralogist, 45, pp. 471-477.
Formula: H8 K Np O9 P
List type: interleaving
List: 2D
Basis: (1;0;0 0;1;0)
Dimensionality: 2
Formula: Np2 O12 P2 (Np O6 P)
Multiplicity: 1