data_9007526
_chemical_name 'Zn2SiO4'
loop_
_publ_author_name
'Marumo F'
'Syono Y'
_journal_name_full "Acta Crystallographica, Section B"
_journal_volume 27
_journal_year 1971
_journal_page_first 1868
_journal_page_last 1870
_publ_section_title
;
 The crystal structure of Zn2SiO4-II, a high-pressure phase of willemite
;
_chemical_formula_sum 'Zn2 Si O4'
_cell_length_a 7.0069
_cell_length_b 7.0069
_cell_length_c 6.4637
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 317.346
_symmetry_space_group_name_H-M 'I -4 2 d'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/2-y,-x,3/4+z'
  '-y,1/2-x,1/4+z'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  '-x,1/2+y,1/4-z'
  '1/2-x,+y,3/4-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  '1/2+y,x,3/4+z'
  '+y,1/2+x,1/4+z'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  'x,1/2-y,1/4-z'
  '1/2+x,-y,3/4-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Zn   0.15700   0.25000   0.12500
Si   0.00000   0.00000   0.50000
O   0.30790   0.48900   0.13760