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 = 1.2 GPa ; _database_code_amcsd 0003535 _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 5.318 _cell_length_b 9.210 _cell_length_c 10.10 _cell_angle_alpha 90 _cell_angle_beta 100.12 _cell_angle_gamma 90 _cell_volume 486.989 _exptl_crystal_density_diffrn 3.029 _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 0.02400 Ba 0.00000 0.00000 0.00000 0.03000 0.02400 Na 0.00000 0.00000 0.00000 0.02000 0.02400 SiT 0.57470 0.16680 0.22300 0.68000 0.01300 AlT 0.57470 0.16680 0.22300 0.32000 0.01300 MgM1 0.00000 0.50000 0.50000 0.72000 0.01220 FeM1 0.00000 0.50000 0.50000 0.28000 0.01220 MgM2 0.00000 0.83610 0.50000 0.73000 0.01260 FeM2 0.00000 0.83610 0.50000 0.27000 0.01260 O1 0.83400 0.22320 0.16900 1.00000 0.02400 O2 0.50200 0.00000 0.16700 1.00000 0.02500 O3 0.63000 0.16630 0.39100 1.00000 0.02000 O4 0.12800 0.00000 0.39100 0.05000 0.02100 F4 0.12800 0.00000 0.39100 0.09000 0.02100 O-H4 0.12800 0.00000 0.39100 0.86000 0.02100