data_global
_chemical_name_mineral 'Greenalite'
loop_
_publ_author_name
'Shirozu H'
'Bailey S W'
_journal_name_full 'American Mineralogist'
_journal_volume 50 
_journal_year 1965
_journal_page_first 868
_journal_page_last 885
_publ_section_title
;
 Chlorite polytypism: III. Crystal structure of an orthohexagonal iron chlorite
;
_database_code_amcsd 0000136
_chemical_formula_sum 'Fe1.71 Mg.645 Al1.305 Si1.34 O9 H4'
_cell_length_a 5.390
_cell_length_b 9.336
_cell_length_c 14.166
_cell_angle_alpha 90
_cell_angle_beta 90.0
_cell_angle_gamma 90
_cell_volume 712.848
_exptl_crystal_density_diffrn      3.094
_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
Fe1   0.00000   0.00000   0.00000   0.67000 ?
Mg1   0.00000   0.00000   0.00000   0.16500 ?
Al1   0.00000   0.00000   0.00000   0.16500 ?
Fe2   0.00000   0.33333   0.00000   0.67000 ?
Mg2   0.00000   0.33333   0.00000   0.16500 ?
Al2   0.00000   0.33333   0.00000   0.16500 ?
Fe3   0.00000   0.00000   0.50000   0.47000 ?
Mg3   0.00000   0.00000   0.50000   0.26500 ?
Al3   0.00000   0.00000   0.50000   0.26500 ?
Fe4   0.00000   0.33333   0.50000   0.47000 ?
Mg4   0.00000   0.33333   0.50000   0.26500 ?
Al4   0.00000   0.33333   0.50000   0.26500 ?
Si   0.33280   0.33333   0.19490   0.67000   0.01798
Al   0.33280   0.33333   0.19490   0.33000   0.01798
O1   0.33490   0.33333   0.07700   1.00000   0.02394
O-H1   0.33490   0.00000   0.07700   1.00000   0.02394
O2   0.09400   0.23600   0.23600   1.00000   0.02698
O3   0.31000   0.50000   0.23600   1.00000   0.01912
O-H2   0.16560   0.16667   0.43030   1.00000   0.03268
O-H3   0.16560   0.50000   0.43030   1.00000   0.03268
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Fe1 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Mg1 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Al1 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Fe2 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Mg2 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Al2 0.01089 0.01545 0.02948 -0.00510 -0.00309 0.00134
Fe3 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067
Mg3 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067
Al3 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067
Fe4 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067
Mg4 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067
Al4 0.01207 0.01192 0.02948 -0.00459 -0.00387 -0.00067