data_global _chemical_name_mineral 'Tainiolite' loop_ _publ_author_name 'Toraya H' 'Iwai S' 'Marumo F' 'Hirao M' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 146 _journal_year 1977 _journal_page_first 73 _journal_page_last 83 _publ_section_title ; The crystal structure of taeniolite, KLiMg2Si4O10F2 Note: this is the 1M polytype ; _database_code_amcsd 0010797 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'K.967 (Mg2.034 Li.966) Si4 O10 F2' _cell_length_a 5.231 _cell_length_b 9.065 _cell_length_c 10.140 _cell_angle_alpha 90 _cell_angle_beta 99.86 _cell_angle_gamma 90 _cell_volume 473.727 _exptl_crystal_density_diffrn 2.834 _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 K 0.00000 0.50000 0.00000 0.96700 Mg1 0.00000 0.00000 0.50000 0.70800 Li1 0.00000 0.00000 0.50000 0.29200 Mg2 0.00000 0.33442 0.50000 0.66300 Li2 0.00000 0.33442 0.50000 0.33700 Si 0.07573 0.16666 0.22829 1.00000 O1 0.04940 0.00000 0.16500 1.00000 O2 0.30750 0.24730 0.16500 1.00000 O3 0.12840 0.16680 0.38710 1.00000 F 0.63330 0.00000 0.39670 1.00000 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 K 0.02409 0.02385 0.02285 0.00000 0.00417 0.00000 Mg1 0.00848 0.00704 0.00794 0.00000 0.00256 0.00000 Li1 0.00848 0.00704 0.00794 0.00000 0.00256 0.00000 Mg2 0.00754 0.00778 0.00784 0.00000 0.00117 0.00000 Li2 0.00754 0.00778 0.00784 0.00000 0.00117 0.00000 Si 0.00552 0.00545 0.00566 0.00000 0.00123 -0.00005 O1 0.01547 0.00599 0.00854 0.00000 0.00123 0.00000 O2 0.00888 0.01270 0.00814 -0.00433 0.00183 -0.00041 O3 0.00861 0.00816 0.00587 -0.00021 0.00130 0.00000 F 0.01211 0.01195 0.01143 0.00000 0.00240 0.00000