data_9004523 _chemical_name 'Phlogopite' loop_ _publ_author_name 'Russell R L' 'Guggenheim S' _journal_name_full "The Canadian Mineralogist" _journal_volume 37 _journal_year 1999 _journal_page_first 711 _journal_page_last 720 _publ_section_title ; The crystal structures of near-end-member phlogopite at high temperatures and heat-treated Fe-rich phlogopite: The influence of the O,OH,F site Sample: heat-treated at 904 degrees C for 24 hours, Fe-rich phlogopite Locality: Silver Crater mine, Ontario, Canada ; _chemical_formula_sum 'K.92 Na.04 Mg1.56 Fe1.17 Ti.144 Mn.06 Si2.972 Al1.004 O11 _cell_length_a 5.3099 _cell_length_b 9.185 _cell_length_c 10.093 _cell_angle_alpha 90 _cell_angle_beta 100.07 _cell_angle_gamma 90 _cell_volume 484.667 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _symmetry_equiv_pos_as_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_Uiso_or_equiv K 0.00000 0.50000 0.00000 0.92000 0.03270 Na 0.00000 0.50000 0.00000 0.04000 0.03270 Mg1 0.00000 0.00000 0.50000 0.52000 0.01810 Fe1 0.00000 0.00000 0.50000 0.39000 0.01810 Ti1 0.00000 0.00000 0.50000 0.04000 0.01810 Mn1 0.00000 0.00000 0.50000 0.02000 0.01810 Mg2 0.00000 0.34200 0.50000 0.52000 0.01450 Fe2 0.00000 0.34200 0.50000 0.39000 0.01450 Ti2 0.00000 0.34200 0.50000 0.04000 0.01450 Mn2 0.00000 0.34200 0.50000 0.02000 0.01450 Si 0.07340 0.16740 0.22320 0.74300 0.01120 Al 0.07340 0.16740 0.22320 0.25100 0.01120 Ti 0.07340 0.16740 0.22320 0.00600 0.01120 O1 0.03100 0.00000 0.16610 1.00000 0.02000 O2 0.31550 0.23800 0.16450 1.00000 0.02160 O3 0.12950 0.16940 0.38960 1.00000 0.01280 O-H4 0.13590 0.50000 0.40100 0.53000 0.01600 F4 0.13590 0.50000 0.40100 0.47000 0.01600