data_global
_chemical_name_mineral 'Clinochlore'
loop_
_publ_author_name
'Phillips T L'
'Loveless J K'
'Bailey S W'
_journal_name_full 'American Mineralogist'
_journal_volume 65 
_journal_year 1980
_journal_page_first 112
_journal_page_last 122
_publ_section_title
;
 Cr3+ coordination in chlorites: a structural study of ten chromian chlorites
 Day Book Body, N. C.
;
_database_code_amcsd 0000770
_chemical_formula_sum 'Mg5 Al1.67 Cr.28 Si3.04 O18 H8'
_cell_length_a 5.327
_cell_length_b 9.227
_cell_length_c 14.356
_cell_angle_alpha 90.45
_cell_angle_beta 97.35
_cell_angle_gamma 89.98
_cell_volume 699.810
_exptl_crystal_density_diffrn      2.670
_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
_atom_site_U_iso_or_equiv
Mg1   0.00000   0.00000   0.00000   1.00000 ?
Mg2   0.00150   0.33360  -0.00010   1.00000 ?
Mg3  -0.00080   0.16670   0.49990   1.00000 ?
Al1   0.00000   0.50000   0.50000   0.71000 ?
Cr1   0.00000   0.50000   0.50000   0.28000 ?
Si1   0.23280   0.16880   0.19200   0.76000 ?
Al1   0.23280   0.16880   0.19200   0.24000 ?
Si2   0.73320   0.00220   0.19190   0.76000 ?
Al2   0.73320   0.00220   0.19190   0.24000 ?
O-h1   0.69150   0.33380   0.07270   1.00000 ?
O-h2   0.15820  -0.00090   0.43050   1.00000 ?
O-h3   0.13490   0.33960   0.43030   1.00000 ?
O-h4   0.63510   0.15820   0.43080   1.00000 ?
O1   0.19350   0.16730   0.07690   1.00000 ?
O2   0.69380   0.00110   0.07670   1.00000 ?
O3   0.21070   0.33640   0.23330   1.00000 ?
O4   0.51510   0.10450   0.23340   1.00000 ?
O5   0.01480   0.06740   0.23300   1.00000 ?
H1   0.68700   0.34300   0.14200   1.00000   0.01900
H2   0.12700   0.01200   0.37100   1.00000   0.01900
H3   0.12900   0.35100   0.36700   1.00000   0.01900
H4   0.60800   0.15700   0.36800   1.00000   0.01900
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
Mg1 0.01287 0.01811 0.02978 -0.00099 0.00267 0.00133
Mg2 0.01259 0.01768 0.03060 -0.00148 0.00229 0.00080
Mg3 0.01541 0.01855 0.03409 -0.00198 0.00229 0.00120
Al1 0.00806 0.00992 0.02300 -0.00198 0.00191 0.00133
Cr1 0.00806 0.00992 0.02300 -0.00198 0.00191 0.00133
Si1 0.00566 0.00819 0.02198 -0.00173 0.00152 0.00106
Al1 0.00566 0.00819 0.02198 -0.00173 0.00152 0.00106
Si2 0.00523 0.00863 0.02208 -0.00123 0.00114 0.00120
Al2 0.00523 0.00863 0.02208 -0.00123 0.00114 0.00120
O-h1 0.00848 0.01423 0.02362 -0.00049 0.00152 0.00200
O-h2 0.01555 0.01811 0.02259 -0.00272 0.00038 0.00133
O-h3 0.01697 0.01811 0.02259 -0.00198 0.00191 0.00266
O-h4 0.01273 0.01639 0.02259 -0.00074 -0.00076 0.00067
O1 0.00707 0.01251 0.02465 -0.00198 0.00229 0.00266
O2 0.00848 0.01078 0.02362 -0.00222 0.00191 0.00000
O3 0.01838 0.01725 0.02670 -0.00321 0.00152 0.00200
O4 0.01414 0.01725 0.03081 -0.00025 0.00114 -0.00133
O5 0.01273 0.02243 0.03081 -0.00420 0.00114 0.00466