data_9001069
_chemical_name 'Olivine'
loop_
_publ_author_name
'Miyake M'
'Nakamura H'
'Kojima H'
'Marumo F'
_journal_name_full "American Mineralogist"
_journal_volume 72
_journal_year 1987
_journal_page_first 594
_journal_page_last 598
_publ_section_title
;
 Cation ordering in Co-Mg olivine solid-solution series
 Sample: Co20
;
_chemical_formula_sum 'Co2 Si O4'
_cell_length_a 4.781
_cell_length_b 10.296
_cell_length_c 5.998
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 295.253
_symmetry_space_group_name_H-M 'P b n m'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Co1   0.00000   0.00000   0.00000
Co2   0.99120   0.27650   0.25000
Si   0.42830   0.09490   0.25000
O1   0.76750   0.09180   0.25000
O2   0.21580   0.44860   0.25000
O3   0.28180   0.16410   0.03390