data_9004148
_chemical_name 'Tetrahedrite'
loop_
_publ_author_name
'Makovicky E'
'Skinner B J'
_journal_name_full "The Canadian Mineralogist"
_journal_volume 17
_journal_year 1979
_journal_page_first 619
_journal_page_last 634
_publ_section_title
;
 Studies of the sulfosalts of copper
 VII. Crystal structures of the exolution products Cu12.3Sb4S13
 and Cu13.8Sb4S13 of unsubstituted synthetic tetrahedrite
 Sample: Cu-poor tetrahedrite Cu12.3Sb4S13
;
_chemical_formula_sum 'Cu11.4 S12.77 Sb4'
_cell_length_a 10.323
_cell_length_b 10.323
_cell_length_c 10.323
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1100.064
_symmetry_space_group_name_H-M 'I -4 3 m'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-z,x,-y'
  '1/2-z,1/2+x,1/2-y'
  '-y,z,-x'
  '1/2-y,1/2+z,1/2-x'
  '-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  'x,-z,-y'
  '1/2+x,1/2-z,1/2-y'
  'z,-y,-x'
  '1/2+z,1/2-y,1/2-x'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  'x,z,y'
  '1/2+x,1/2+z,1/2+y'
  'z,y,x'
  '1/2+z,1/2+y,1/2+x'
  'y,x,z'
  '1/2+y,1/2+x,1/2+z'
  '-z,-x,y'
  '1/2-z,1/2-x,1/2+y'
  '-y,-z,x'
  '1/2-y,1/2-z,1/2+x'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  'z,-x,-y'
  '1/2+z,1/2-x,1/2-y'
  'y,-z,-x'
  '1/2+y,1/2-z,1/2-x'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  '-x,z,-y'
  '1/2-x,1/2+z,1/2-y'
  '-z,y,-x'
  '1/2-z,1/2+y,1/2-x'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  '-x,-z,y'
  '1/2-x,1/2-z,1/2+y'
  '-z,-y,x'
  '1/2-z,1/2-y,1/2+x'
  '-y,-x,z'
  '1/2-y,1/2-x,1/2+z'
  'z,x,y'
  '1/2+z,1/2+x,1/2+y'
  'y,z,x'
  '1/2+y,1/2+z,1/2+x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_Uiso_or_equiv
Cu1   0.25000   0.50000   0.00000   0.90000   0.03280
Cu2   0.21800   0.00000   0.00000   1.00000   0.08030
S1   0.11440   0.11440   0.36350   0.99000   0.01887
S2   0.00000   0.00000   0.00000   0.89000   0.02647
Sb   0.26830   0.26830   0.26830   1.00000   0.01748