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 0020925
_chemical_compound_source 'Blue Bell mine, California, USA'
_chemical_formula_sum 'Bi6 Te2 O15'
_cell_length_a 10.637
_cell_length_b 22.797
_cell_length_c 5.4136
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1312.753
_exptl_crystal_density_diffrn      8.850
_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   0.11670   0.62239   0.26590
Bi2   0.37994   0.00591   0.28230
Bi3   0.13800   0.25000   0.77590
Bi4   0.39030   0.25000   0.26930
Te   0.13160   0.12789   0.25210
O1   0.00400   0.16280   0.05000
O2   0.01100   0.07210   0.38800
O3   0.06270   0.53240   0.14200
O4   0.07600   0.17950   0.50500
O5   0.24810   0.18550   0.12400
O6   0.25800   0.09350   0.45000
O7   0.31300   0.57640   0.49800
O8   0.32500   0.25000   0.64000