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 = 5.0 GPa ; _database_code_amcsd 0003537 _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 5.271 _cell_length_b 9.130 _cell_length_c 9.78 _cell_angle_alpha 90 _cell_angle_beta 100.3 _cell_angle_gamma 90 _cell_volume 463.070 _exptl_crystal_density_diffrn 3.185 _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 0.01790 Ba 0.00000 0.00000 0.00000 0.03000 0.01790 Na 0.00000 0.00000 0.00000 0.02000 0.01790 SiT 0.57150 0.16730 0.21510 0.68000 0.01080 AlT 0.57150 0.16730 0.21510 0.32000 0.01080 MgM1 0.00000 0.50000 0.50000 0.72000 0.00850 FeM1 0.00000 0.50000 0.50000 0.28000 0.00850 MgM2 0.00000 0.83660 0.50000 0.73000 0.01000 FeM2 0.00000 0.83660 0.50000 0.27000 0.01000 O1 0.83400 0.21340 0.15800 1.00000 0.02100 O2 0.49000 0.00000 0.15600 1.00000 0.02200 O3 0.62900 0.16750 0.38800 1.00000 0.01300 O4 0.12800 0.00000 0.38700 0.05000 0.01400 F4 0.12800 0.00000 0.38700 0.09000 0.01400 O-H4 0.12800 0.00000 0.38700 0.86000 0.01400