data_global
_amcsd_formula_title 'NaGaSi2O6'
loop_
_publ_author_name
'Nestola F'
'Rotiroti N'
'Bruno M'
'Tribaudino M'
'van Smaalen S'
'Ohashi H'
'Redhammer G J'
_journal_name_full 'American Mineralogist'
_journal_volume 92 
_journal_year 2007
_journal_page_first 560
_journal_page_last 569
_publ_section_title
;
 Low-temperature behavior of NaGaSi2O6
 Sample: T = 190 K
;
_database_code_amcsd 0004309
_chemical_formula_sum 'Na Ga Si2 O6'
_cell_length_a 9.5472
_cell_length_b 8.6894
_cell_length_c 5.2667
_cell_angle_alpha 90
_cell_angle_beta 107.632
_cell_angle_gamma 90
_cell_volume 416.397
_exptl_crystal_density_diffrn      3.906
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na   0.00000   0.30051   0.25000   0.00740
Ga   0.00000   0.90219   0.25000   0.00244
Si   0.29119   0.09127   0.23241   0.00237
O1   0.11191   0.07803   0.13350   0.00320
O2   0.35878   0.25935   0.30219   0.00460
O3   0.35285   0.00980   0.00769   0.00410