data_global
_chemical_name_mineral 'Pyrophanite'
loop_
_publ_author_name
'Mitchell R H'
'Liferovich R P'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 42 
_journal_year 2004
_journal_page_first 1871
_journal_page_last 1880
_publ_section_title
;
 The pyrophanite-ecandrewsite solid-solution: crystal structures
 of the Mn1-xZnxSiO3 series (0.1 <= x <= 0.8)
 Sample: x = .3, ilmenite structure
;
_database_code_amcsd 0005997
_chemical_formula_sum '(Mn.7 Zn.3) Ti O3'
_cell_length_a 5.11892
_cell_length_b 5.11892
_cell_length_c 14.1741
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 321.649
_exptl_crystal_density_diffrn      4.769
_symmetry_space_group_name_H-M 'R -3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Mn   0.00000   0.00000   0.36072   0.70000   0.00633
Zn   0.00000   0.00000   0.36072   0.30000   0.00633
Ti   0.00000   0.00000   0.14805   1.00000   0.00507
O   0.32060   0.03020   0.24350   1.00000   0.00633