data_global _chemical_name_mineral 'Fluorophlogopite' loop_ _publ_author_name 'Hazen R M' 'Finger L W' _journal_name_full 'American Mineralogist' _journal_volume 63 _journal_year 1978 _journal_page_first 293 _journal_page_last 296 _publ_section_title ; The crystal structures and compressibilities of layer minerals at high pressure. II. Phlogopite and chlorite P = 35 kbar, sample is from Franklin, New Jersey, USA ; _database_code_amcsd 0000628 _chemical_formula_sum '(Si2.952 Al1.048) Mg3 K.76 Na.16 Ba.05 O10.7 (F1.3 H.7)' _cell_length_a 5.260 _cell_length_b 9.100 _cell_length_c 9.791 _cell_angle_alpha 90 _cell_angle_beta 100.68 _cell_angle_gamma 90 _cell_volume 460.538 _exptl_crystal_density_diffrn 3.036 _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 _atom_site_U_iso_or_equiv Si 0.57300 0.16630 0.21200 0.73800 0.01267 Al 0.57300 0.16630 0.21200 0.26200 0.01267 Mg1 0.00000 0.50000 0.50000 1.00000 0.00253 Mg2 0.00000 0.83160 0.50000 1.00000 0.00380 K 0.00000 0.00000 0.00000 0.76000 0.01520 Na 0.00000 0.00000 0.00000 0.16000 0.01520 Ba 0.00000 0.00000 0.00000 0.05000 0.01520 O1 0.82100 0.22500 0.15600 1.00000 0.01646 O2 0.49800 0.00000 0.15600 1.00000 0.01646 O3 0.64900 0.16600 0.39300 1.00000 0.00760 F 0.12400 0.00000 0.39300 0.65000 0.01013 O-H 0.12400 0.00000 0.39300 0.35000 0.01013