data_global
_chemical_name_mineral 'Andalusite'
loop_
_publ_author_name
'Taylor W'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 71 
_journal_year 1929
_journal_page_first 205
_journal_page_last 218
_publ_section_title
;
 The Structure of Andalusite, Al2 Si O5
 _cod_database_code 1010924
;
_database_code_amcsd 0017647
_chemical_formula_sum 'O5 Si Al2'
_cell_length_a 7.76
_cell_length_b 7.90
_cell_length_c 5.56
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 340.850
_exptl_crystal_density_diffrn      3.158
_symmetry_space_group_name_H-M 'P n n m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  'x,y,-z'
  '-x,-y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1   0.08000  -0.14000   0.00000
O2   0.04000  -0.17000   0.50000
O3   0.14000   0.40000   0.00000
O4   0.21000   0.14000   0.25000
Si1   0.28000   0.25000   0.00000
Al1   0.00000   0.00000   0.25000
Al2  -0.14000   0.36000   0.00000