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 = 6.0 GPa ; _database_code_amcsd 0003538 _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 5.256 _cell_length_b 9.105 _cell_length_c 9.71 _cell_angle_alpha 90 _cell_angle_beta 100.4 _cell_angle_gamma 90 _cell_volume 457.047 _exptl_crystal_density_diffrn 3.227 _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 0.01410 Ba 0.00000 0.00000 0.00000 0.03000 0.01410 Na 0.00000 0.00000 0.00000 0.02000 0.01410 SiT 0.57200 0.16680 0.21600 0.68000 0.00790 AlT 0.57200 0.16680 0.21600 0.32000 0.00790 MgM1 0.00000 0.50000 0.50000 0.72000 0.00720 FeM1 0.00000 0.50000 0.50000 0.28000 0.00720 MgM2 0.00000 0.83690 0.50000 0.73000 0.00740 FeM2 0.00000 0.83690 0.50000 0.27000 0.00740 O1 0.83400 0.21960 0.15400 1.00000 0.01900 O2 0.48800 0.00000 0.15200 1.00000 0.01900 O3 0.63170 0.16740 0.39300 1.00000 0.01100 O4 0.12800 0.00000 0.38700 0.05000 0.01000 F4 0.12800 0.00000 0.38700 0.09000 0.01000 O-H4 0.12800 0.00000 0.38700 0.86000 0.01000