data_global _chemical_name_mineral 'Phlogopite' loop_ _publ_author_name 'Comodi P' 'Fumagalli P' 'Montagnoli M' 'Zanazzi P F' _journal_name_full 'American Mineralogist' _journal_volume 89 _journal_year 2004 _journal_page_first 647 _journal_page_last 653 _publ_section_title ; A single-crystal study on the pressure behavior of phlogopite and petrological implications P = 0.0001 GPa ; _database_code_amcsd 0003534 _chemical_formula_sum 'K.91 Ba.03 Na.02 (Si2.72 Al1.28) (Mg2.18 Fe.82) O11.82 F.18 H1.72' _cell_length_a 5.337 _cell_length_b 9.240 _cell_length_c 10.237 _cell_angle_alpha 90 _cell_angle_beta 100.02 _cell_angle_gamma 90 _cell_volume 497.126 _exptl_crystal_density_diffrn 2.967 _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 K 0.00000 0.00000 0.00000 0.91000 0.03000 Ba 0.00000 0.00000 0.00000 0.03000 0.03000 Na 0.00000 0.00000 0.00000 0.02000 0.03000 SiT 0.57430 0.16710 0.22500 0.68000 0.00680 AlT 0.57430 0.16710 0.22500 0.32000 0.00680 MgM1 0.00000 0.50000 0.50000 0.72000 0.00680 FeM1 0.00000 0.50000 0.50000 0.28000 0.00680 MgM2 0.00000 0.83520 0.50000 0.73000 0.00450 FeM2 0.00000 0.83520 0.50000 0.27000 0.00450 O1 0.83100 0.22640 0.16900 1.00000 0.02100 O2 0.50700 0.00000 0.16700 1.00000 0.02300 O3 0.63100 0.16740 0.39300 1.00000 0.00400 O4 0.12900 0.00000 0.38900 0.05000 0.00900 F4 0.12900 0.00000 0.38900 0.09000 0.00900 O-H4 0.12900 0.00000 0.38900 0.86000 0.00900