Citation: Burns, P. C.; Deely, K. M.; Hayden, L. A. (2003). The crystal chemistry of the zippeite group Sample: SZIPPNH4II. The Canadian Mineralogist, 41, pp. 687-706.
Formula: N2 O10 S U2
List type: interleaving
List: 2D
Basis: (0;1;0 0;0;1)
Dimensionality: 2
Formula: O40 S4 U8 (O10 S U2)
Multiplicity: 1