AM_Hilairite
Formula: Na3.634 Zr2 Si6 O24 H12
Name: Hilairite
Unit cell: 10.556 10.556 15.855 90.0 90.0 120.0 , V=1530.01
Space group: R32 (155)

Ilyushin G D , Voronkov A A , Nevskii N N , Ilyukhin V V , Belov N V , Doklady Akademii Nauk SSSR , 260 (1981) p.1118-1120, Crystal structure of hilairite, Na2ZrSi3O9*3H2O