Citation: Plasil, J.; Fejfarova, K.; Cejka, J.; Dusek, M.; Skoda, R.; Sejkora, J. (2013). Revision of the crystal structure and chemical formula of haiweeite, Ca(UO2)2(Si5O12)(OH)2*6H2O. American Mineralogist, 98, pp. 718-723.
Formula: Ca H17 O25.5 Si5 U2
List type: interleaving
List: 2D
Basis: (0;1;0 0;0;1)
Dimensionality: 2
Formula: O72 Si20 U8 (O18 Si5 U2)
Multiplicity: 1