data_global
_chemical_name_mineral 'Clinochlore'
loop_
_publ_author_name
'McMurchy R C'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 88 
_journal_year 1934
_journal_page_first 420
_journal_page_last 432
_publ_section_title
;
 The crystal structure of the chlorite minerals
 Note: originally called sheridanite
;
_database_code_amcsd 0010543
_chemical_compound_source 'Miles City, Montana, USA'
_chemical_formula_sum 'Mg5 Al2 Si3 O18 H8'
_cell_length_a 5.305
_cell_length_b 9.189
_cell_length_c 28.5
_cell_angle_alpha 90
_cell_angle_beta 97.147
_cell_angle_gamma 90
_cell_volume 1378.513
_exptl_crystal_density_diffrn      2.678
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-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   0.00000   0.00000   0.00000   1.00000
Mg2   0.00000   0.33333   0.00000   1.00000
Mg4   0.00000   0.16667   0.25000   0.66667
Al4   0.00000   0.16667   0.25000   0.33333
Mg5   0.00000  -0.16667   0.25000   0.66667
Al5   0.00000  -0.16667   0.25000   0.33333
Mg6   0.00000   0.50000   0.25000   0.66667
Al6   0.00000   0.50000   0.25000   0.33333
SiT1  -0.26900   0.00000   0.09400   0.75000
AlT1  -0.26900   0.00000   0.09400   0.25000
SiT2  -0.26900  -0.33333   0.09400   0.75000
AlT2  -0.26900  -0.33333   0.09400   0.25000
O1  -0.30800  -0.33333   0.03900   1.00000
O2  -0.30800   0.00000   0.03900   1.00000
O3  -0.00600   0.08333   0.11400   1.00000
O4  -0.00600  -0.41700   0.11400   1.00000
O5  -0.25600  -0.16667   0.11400   1.00000
O-H1  -0.30800   0.33333   0.03900   1.00000
O-H2   0.14200   0.00000   0.21100   1.00000
O-H3   0.14200   0.33333   0.21100   1.00000
O-H4   0.14200  -0.33333   0.21100   1.00000