data_global
_chemical_name_mineral 'Clinochlore'
loop_
_publ_author_name
'Brown B E'
'Bailey S W'
_journal_name_full 'American Mineralogist'
_journal_volume 48
_journal_year 1963
_journal_page_first 42
_journal_page_last 61
_publ_section_title
;
 Chlorite polytypism: II. Crystal structure of a one-layer Cr-chlorite
 Note: variety called kammererite
;
_database_code_amcsd 119
_chemical_formula_sum 'Mg5.1 Al1.2 Cr.7 Si3 O18 H8'
_cell_length_a 5.338
_cell_length_b 9.247
_cell_length_c 14.435
_cell_angle_alpha 90.0
_cell_angle_beta 97.08
_cell_angle_gamma 90.0
_cell_volume 707.086
_exptl_crystal_density_diffrn  2.691
_symmetry_space_group_name_H-M 'C -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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Mg1   0.0  0.0  0.0  1.0
Mg2   -0.001  0.333  0.002  1.0
Mg3   0.003  0.166  0.504  1.0
Mg4   0.0  0.5  0.5  0.1
Al4   0.0  0.5  0.5  0.2
Cr4   0.0  0.5  0.5  0.7
Si1   0.4  0.001  0.191  0.6
Al1   0.4  0.001  0.191  0.4
Si2   0.894  0.167  0.191  0.9
Al2   0.894  0.167  0.191  0.1
O1   0.36  -0.004  0.075  1.0
O2   0.86  0.171  0.076  1.0
O-H1   0.381  0.333  0.074  1.0
O3   0.133  0.065  0.232  1.0
O4   0.645  0.1  0.232  1.0
O5   0.931  0.328  0.234  1.0
O-H2   0.154  -0.002  0.432  1.0
O-H3   0.129  0.339  0.428  1.0
O-H4   0.653  0.164  0.428  1.0