data_2003021
_journal_name_full     'Acta Crystallographica, Section B'
_journal_year     1998
_journal_volume     B54
_journal_page_first     558
_journal_page_last     563
loop_
    _publ_author_name
    'Binsted, N.'
    'Dann, S.E.'
    'Pack, M.J.'
    'Weller, M.T.'
_chemical_formula_sum     'H8 Ca8 Ga8 O32 Si4'
_symmetry_cell_setting     cubic
_symmetry_space_group_name_H-M     'I -4 3 m'
_symmetry_space_group_name_Hall     'I -4 2 3'
_cell_length_a     8.93460(10)
_cell_length_b     8.93460(10)
_cell_length_c     8.93460(10)
_cell_angle_alpha     90.0
_cell_angle_beta     90.0
_cell_angle_gamma     90.0
_cell_volume     713.22
_cell_formula_units_Z     1
_diffrn_radiation_type     neutron
_diffrn_radiation_wavelength     1.594
loop_
    _atom_site_label
    _atom_site_fract_x
    _atom_site_fract_y
    _atom_site_fract_z
    _atom_site_occupancy
    Ga .25 .5 .0 0.67
    Si .25 .5 .0 0.33
    O1 .1399(2) .1399(2) .4131(3) 1.0
    Ca .1418(4) .1418(4) .1418(4) 1.0
    O2 .3837(3) .3837(3) .3837(3) 1.0
    H .3120(10)
              .3120(10)
                      .359(2) 0.33