AM_Wycheproofite Formula: Na.884 Al Zr P2 O10.897 H4 Name: Wycheproofite Unit cell: 5.263 9.251 9.48 109.49 98.57 90.09 , V=429.60 Space group: P-1 (2)

Kolitsch U , European Journal of Mineralogy , 15 (2003) p.1029-1034, The crystal structure of wycheproofite, NaAlZr(PO4)2(OH)2.H2O