data_global _chemical_name_mineral 'Chlorite' loop_ _publ_author_name 'Lister J S' 'Bailey S W' _journal_name_full 'American Mineralogist' _journal_volume 52 _journal_year 1967 _journal_page_first 1614 _journal_page_last 1631 _publ_section_title ; Chlorite polytypism: IV. Regular two-layer structures refined structure ; _database_code_amcsd 162 _chemical_formula_sum 'Mg3 Si2 O9 H4' _cell_length_a 5.335 _cell_length_b 9.24 _cell_length_c 28.735 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 1416.503 _exptl_crystal_density_diffrn 2.599 _symmetry_space_group_name_H-M 'C 1' loop_ _space_group_symop_operation_xyz '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 Mg1 0.0 0.0 0.0 Mg2 0.007 0.329 0.002 Mg3 0.987 0.66 0.996 Mg4 0.164 0.17 0.25 Mg5 0.18 0.502 0.25 Mg6 0.176 0.832 0.25 Mg7 0.021 0.992 0.498 Mg8 0.984 0.329 0.496 Mg9 0.015 0.656 0.497 Mg10 0.338 0.002 0.75 Mg11 0.345 0.335 0.75 Mg12 0.348 0.668 0.75 Si1 0.336 0.338 0.152 Si2 0.339 0.672 0.154 Si3 0.004 0.001 0.348 Si4 0.006 0.671 0.344 Si5 0.17 0.167 0.656 Si6 0.17 0.837 0.653 Si7 0.992 0.005 0.844 Si8 0.992 0.671 0.845 O1 0.098 0.76 0.132 O2 0.59 0.73 0.138 O3 0.322 0.512 0.138 O4 0.333 0.333 0.214 O5 0.333 0.667 0.214 O6 0.215 0.57 0.371 O7 0.739 0.62 0.358 O8 0.514 0.316 0.369 O9 0.0 0.0 0.286 O10 0.0 0.667 0.286 O11 0.41 0.732 0.64 O12 0.914 0.758 0.634 O13 0.678 0.508 0.64 O14 0.167 0.167 0.714 O15 0.167 0.833 0.714 O16 0.278 0.621 0.859 O17 0.778 0.571 0.872 O18 0.45 0.328 0.867 O19 0.0 0.0 0.786 O20 0.0 0.667 0.786 O-H1 0.386 0.002 0.967 O-H2 0.366 0.347 0.967 O-H3 0.378 0.667 0.967 O-H4 0.172 0.155 0.034 O-H5 0.156 0.504 0.034 O-H6 0.154 0.826 0.034 O-H7 0.333 0.0 0.214 O-H8 0.0 0.333 0.286 O-H9 0.168 0.167 0.467 O-H10 0.14 0.505 0.467 O-H11 0.166 0.843 0.467 O-H12 0.363 0.002 0.534 O-H13 0.371 0.327 0.534 O-H14 0.384 0.648 0.534 O-H15 0.167 0.5 0.714 O-H16 0.0 0.333 0.786