data_global
_chemical_name_mineral 'Pingguite'
loop_
_publ_author_name
'Nenert G'
'Missen O P'
'Lian H'
'Weil M'
'Blake G R'
'Kampf A R'
'Mills S J'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 47 
_journal_year 2020
_journal_page_first 
_journal_page_last 53
_publ_section_title
;
 Crystal structure and thermal behavior of Bi6Te2O15: investigation of
 synthetic and natural pingguite
;
_database_code_amcsd 0020926
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Bi6 Te2 O15'
_cell_length_a 10.61155
_cell_length_b 22.74458
_cell_length_c 5.399038
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1303.086
_exptl_crystal_density_diffrn      8.915
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Bi1   0.11570   0.62244   0.26700
Bi2   0.37950   0.00586   0.28270
Bi3   0.14030   0.25000   0.72460
Bi4   0.38980   0.25000   0.26920
Te   0.13030   0.12817   0.25080
O1   0.00400   0.16210   0.04100
O2   0.01400   0.07400   0.39000
O3   0.06100   0.53320   0.15300
O4   0.07700   0.18140   0.50500
O5   0.24800   0.18680   0.12100
O6   0.26000   0.09650   0.45500
O7   0.30500   0.57830   0.51000
O8   0.32800   0.25000   0.63900