data_global
_chemical_name_mineral 'Annite'
loop_
_publ_author_name
'Redhammer G J'
'Beran A'
'Schneider J'
'Amthauer G'
'Lottermoser W'
_journal_name_full 'American Mineralogist'
_journal_volume 85 
_journal_year 2000
_journal_page_first 449
_journal_page_last 465
_publ_section_title
;
 Spectroscopic and structural properties of synthetic micas on the
 annite-siderophyllite binary: Synthesis, crystal structure refinement,
 Mossbauer, and infrared spectroscopy
 Sample: sd75no.10
;
_database_code_amcsd 0002397
_chemical_formula_sum 'Si2.32 Al3.156 Fe1.624 K.928 O12'
_cell_length_a 5.3607
_cell_length_b 9.2874
_cell_length_c 10.2664
_cell_angle_alpha 90
_cell_angle_beta 100.30
_cell_angle_gamma 90
_cell_volume 502.896
_exptl_crystal_density_diffrn      3.099
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-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
SiT   0.57400   0.16650   0.22660   0.58000   0.00861
AlT   0.57400   0.16650   0.22660   0.42000   0.00861
Al1   0.00000   0.50000   0.50000   0.86400   0.01013
Fe1   0.00000   0.50000   0.50000   0.13600   0.01013
Al2   0.00000   0.83190   0.50000   0.30600   0.01203
Fe2   0.00000   0.83190   0.50000   0.74400   0.01203
K   0.00000   0.00000   0.00000   0.92800   0.02406
O1   0.83330   0.22050   0.17680   1.00000   0.02660
O2   0.50690   0.00000   0.17400   1.00000   0.02280
O3   0.63840   0.16970   0.39450   1.00000   0.02406
O4   0.13090   0.00000   0.39280   1.00000   0.01773