data_global
_chemical_name_mineral 'Gaidonnayite'
loop_
_publ_author_name
'Chao G Y'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 23 
_journal_year 1985
_journal_page_first 11
_journal_page_last 15
_publ_section_title
;
 The crystal structure of gaidonnayite Na2ZrSi3O9.2H2O
;
_database_code_amcsd 0005201
_chemical_compound_source 'Mont St. Hilaire, Quebec, Canada'
_chemical_formula_sum 'Na2 Zr Si3 O11 H4'
_cell_length_a 11.740
_cell_length_b 12.820
_cell_length_c 6.691
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1007.041
_exptl_crystal_density_diffrn      2.648
_symmetry_space_group_name_H-M 'P 21 n b'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2-z'
  '1/2+x,1/2-y,1/2+z'
  '1/2+x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1   0.74660   0.15670   0.43070
Na2  -0.00410   0.38760   0.33160
Zr   0.25000   0.05310   0.15100
Si1   0.28090   0.28830   0.39270
Si2   0.49810   0.41800   0.39110
Si3   0.71440   0.39180   0.15010
O1   0.21160   0.39520   0.36440
O2   0.41730   0.31550   0.41860
O3   0.74170   0.26990   0.10170
O4   0.26540   0.20960   0.20650
O5   0.42250   0.01940   0.15620
O6   0.57590   0.39400   0.19600
O7   0.07430   0.07060   0.08980
O8   0.23980   0.03610   0.45830
O9   0.78170   0.42580   0.34740
Wat1   0.53970   0.13260   0.47390
Wat2   0.95580   0.19910   0.38210
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na1 0.03561 0.03747 0.03674 0.00534 -0.00756 -0.00217
Na2 0.03282 0.03081 0.04082 0.00457 -0.00398 -0.02129
Zr 0.01676 0.01249 0.01429 0.00000 -0.00159 0.00000
Si1 0.01466 0.00583 0.01338 -0.00076 -0.00159 0.00000
Si2 0.01396 0.01249 0.01315 -0.00076 -0.00199 -0.00043
Si3 0.01396 0.01249 0.01157 0.00076 0.00159 -0.00348
O1 0.01746 0.00666 0.02041 0.00534 -0.00119 -0.00913
O2 0.01536 0.00749 0.02336 -0.00915 -0.00637 0.00652
O3 0.02025 0.01166 0.01270 0.01372 0.00836 0.00521
O4 0.02723 0.01415 0.01769 -0.01372 0.01433 0.00130
O5 0.01606 0.01166 0.02427 0.00915 -0.00637 -0.00999
O6 0.01536 0.02914 0.01361 -0.00076 0.00398 -0.01260
O7 0.01047 0.01915 0.01520 0.00152 -0.00199 -0.00130
O8 0.01885 0.00999 0.00136 0.00229 0.00438 -0.00261
O9 0.02165 0.01582 0.01066 -0.00839 -0.00796 -0.00782
Wat1 0.03352 0.02664 0.04219 0.00839 -0.01194 -0.01391
Wat2 0.04189 0.02914 0.02676 0.01982 -0.00716 0.00999