data_global
_chemical_name_mineral 'Colinowensite'
loop_
_publ_author_name
'Chen Y'
'Zhang Y'
'Feng S'
_journal_name_full 'Dyes and Pigments'
_journal_volume 105 
_journal_year 2014
_journal_page_first 167
_journal_page_last 173
_publ_section_title
;
 Hydrothermal synthesis and properties of pigments
 Chinese purple BaCuSi2O6 and dark blue BaCu2Si2O7
;
_database_code_amcsd 0020059
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Ba Cu Si2 O6'
_cell_length_a 9.97511
_cell_length_b 9.97511
_cell_length_c 22.2887
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 2217.789
_exptl_crystal_density_diffrn      4.229
_symmetry_space_group_name_H-M 'I 41/a c d'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/4-y,3/4-x,3/4+z'
  '3/4-y,1/4-x,1/4+z'
  '1/4+y,3/4+x,3/4-z'
  '3/4+y,1/4+x,1/4-z'
  '1/4+y,3/4-x,1/4-z'
  '3/4+y,1/4-x,3/4-z'
  '1/4-y,3/4+x,1/4+z'
  '3/4-y,1/4+x,3/4+z'
  '1/2+x,-y,z'
  '+x,1/2-y,1/2+z'
  '1/2-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2+x,y,1/2-z'
  '+x,1/2+y,-z'
  '1/2-x,-y,1/2+z'
  '-x,1/2-y,+z'
  '1/4+y,1/4+x,1/4+z'
  '3/4+y,3/4+x,3/4+z'
  '1/4-y,1/4-x,1/4-z'
  '3/4-y,3/4-x,3/4-z'
  '1/4-y,1/4+x,3/4-z'
  '3/4-y,3/4+x,1/4-z'
  '1/4+y,1/4-x,3/4+z'
  '3/4+y,3/4-x,1/4+z'
  '-x,y,1/2+z'
  '1/2-x,1/2+y,+z'
  'x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ba   0.25000   0.99020   0.50000   0.00063
Cu   0.00000   0.25000   0.06309   0.00076
Si   0.27760   0.75250   0.87600   0.00063
O1   0.20700   0.72100   0.81640   0.00114
O2   0.37400   0.87600   0.86070   0.00076
O3   0.31640   0.78030   0.06450   0.00025