data_global
_chemical_name_mineral 'Quetzalcoatlite'
loop_
_publ_author_name
'Burns P C'
'Pluth J J'
'Smith J V'
'Eng P'
'Steele I M'
'Housley R M'
_journal_name_full 'American Mineralogist'
_journal_volume 85 
_journal_year 2000
_journal_page_first 604
_journal_page_last 607
_publ_section_title
;
 Quetzalcoatlite: New octahedral-tetrahedral structure from 2x2x40 micron
 crystal at the Advanced Photon Source-GSE-CARS Facility
;
_database_code_amcsd 0002428
_chemical_formula_sum 'Te2 Zn6 Cu3 O18 Ag.24 Pb.3 Cl.84 H6'
_cell_length_a 10.145
_cell_length_b 10.145
_cell_length_c 4.9925
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 444.993
_exptl_crystal_density_diffrn      4.665
_symmetry_space_group_name_H-M 'P -3 1 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x-y,-y,z'
  'y,-x+y,-z'
  '-y,-x,-z'
  '-x+y,-x,z'
  '-x,-x+y,z'
  '-x,-y,-z'
  '-x+y,y,-z'
  '-y,x-y,z'
  'y,x,z'
  'x-y,x,-z'
  'x,x-y,-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
Te   0.33333   0.66667   0.50000   1.00000   0.00950
Zn   0.20371   0.40740   0.00000   1.00000   0.01400
Cu   0.50000   0.00000   0.50000   1.00000   0.01800
O   0.35080   0.51900   0.28500   1.00000   0.01430
O-H   0.00000   0.27720   0.15800   1.00000   0.02900
Ag   0.00000   0.00000   0.00000   0.24000   0.05940
Pb   0.00000   0.00000   0.00000   0.30000   0.05940
Cl   0.00000   0.00000   0.50000   0.84000   0.02110