data_global _chemical_name_mineral 'Phlogopite' loop_ _publ_author_name 'Laurora A' 'Brigatti M F' 'Mottana A' 'Malferrari D' 'Caprilli E' _journal_name_full 'American Mineralogist' _journal_volume 92 _journal_year 2007 _journal_page_first 468 _journal_page_last 480 _publ_section_title ; Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy) Sample: MS14(2) Note: 2M_1 polytype ; _database_code_amcsd 0004306 _chemical_compound_source 'Mt. Sassetto, Tolfa district, Latium, Italy' _chemical_formula_sum 'K.93 Na.06 Mg1.44 Fe1.08 Ti.33 Al1.27 Si2.88 O12' _cell_length_a 5.3449 _cell_length_b 9.2375 _cell_length_c 20.095 _cell_angle_alpha 90 _cell_angle_beta 95.143 _cell_angle_gamma 90 _cell_volume 988.166 _exptl_crystal_density_diffrn 3.065 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-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 KA 0.00000 0.08430 0.25000 0.93000 0.03300 NaA 0.00000 0.08430 0.25000 0.06000 0.03300 MgM1 0.75000 0.25000 0.00000 0.48000 0.01200 Fe2+M1 0.75000 0.25000 0.00000 0.36000 0.01200 TiM1 0.75000 0.25000 0.00000 0.11000 0.01200 AlM1 0.75000 0.25000 0.00000 0.05000 0.01200 MgM2 0.24120 0.08030 0.00000 0.48000 0.01300 Fe2+M2 0.24120 0.08030 0.00000 0.36000 0.01300 TiM2 0.24120 0.08030 0.00000 0.11000 0.01300 AlM2 0.24120 0.08030 0.00000 0.05000 0.01300 AlT1 0.46200 0.25020 0.13800 0.28000 0.00900 SiT1 0.46200 0.25020 0.13800 0.72000 0.00900 AlT2 0.96360 0.41740 0.13800 0.28000 0.01000 SiT2 0.96360 0.41740 0.13800 0.72000 0.01000 O11 0.73660 0.31940 0.16600 1.00000 0.01900 O21 0.23640 0.34790 0.16710 1.00000 0.01900 O22 0.44420 0.08370 0.16710 1.00000 0.01900 O31 0.43060 0.24980 0.05480 1.00000 0.01200 O32 0.93850 0.41890 0.05490 1.00000 0.01100 O41 0.93460 0.08230 0.05030 1.00000 0.01200 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 KA 0.03100 0.03200 0.03700 0.00000 0.00300 0.00000 NaA 0.03100 0.03200 0.03700 0.00000 0.00300 0.00000 MgM1 0.00900 0.01000 0.01600 0.00100 0.00200 -0.00100 Fe2+M1 0.00900 0.01000 0.01600 0.00100 0.00200 -0.00100 TiM1 0.00900 0.01000 0.01600 0.00100 0.00200 -0.00100 AlM1 0.00900 0.01000 0.01600 0.00100 0.00200 -0.00100 MgM2 0.01400 0.01100 0.01400 0.00500 0.00100 0.00100 Fe2+M2 0.01400 0.01100 0.01400 0.00500 0.00100 0.00100 TiM2 0.01400 0.01100 0.01400 0.00500 0.00100 0.00100 AlM2 0.01400 0.01100 0.01400 0.00500 0.00100 0.00100 AlT1 0.00900 0.00900 0.01100 0.00100 0.00100 0.00000 SiT1 0.00900 0.00900 0.01100 0.00100 0.00100 0.00000 AlT2 0.00900 0.00900 0.01100 0.00100 0.00100 0.00000 SiT2 0.00900 0.00900 0.01100 0.00100 0.00100 0.00000 O11 0.01700 0.02500 0.01500 -0.00600 0.00100 0.00200 O21 0.01700 0.02400 0.01600 0.00700 -0.00100 -0.00200 O22 0.02900 0.01300 0.01500 0.00100 0.00400 0.00100 O31 0.01200 0.01200 0.01100 0.00200 0.00100 0.00100 O32 0.01100 0.01200 0.01100 0.00200 0.00200 0.00100 O41 0.01300 0.01100 0.01300 0.00400 0.00100 0.00100