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: MS13 Note: 1M polytype ; _database_code_amcsd 0004304 _chemical_compound_source 'Mt. Sassetto, Tolfa district, Latium, Italy' _chemical_formula_sum '(K.93 Na.07) (Mg1.5 Fe1.11 Ti.39) (Al1.16 Si2.84) O12' _cell_length_a 5.3399 _cell_length_b 9.2483 _cell_length_c 10.1688 _cell_angle_alpha 90 _cell_angle_beta 100.217 _cell_angle_gamma 90 _cell_volume 494.223 _exptl_crystal_density_diffrn 3.079 _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 KA 0.00000 0.50000 0.00000 0.93000 0.03300 NaA 0.00000 0.50000 0.00000 0.07000 0.03300 MgM1 0.00000 0.00000 0.50000 0.50000 0.01300 Fe2+M1 0.00000 0.00000 0.50000 0.37000 0.01300 TiM1 0.00000 0.00000 0.50000 0.13000 0.01300 MgM2 0.00000 0.33890 0.50000 0.50000 0.01400 Fe2+M2 0.00000 0.33890 0.50000 0.37000 0.01400 TiM2 0.00000 0.33890 0.50000 0.13000 0.01400 AlT 0.07450 0.16720 0.22420 0.29000 0.00700 SiT 0.07450 0.16720 0.22420 0.71000 0.00700 O1 0.31840 0.23570 0.16620 1.00000 0.02100 O2 0.02770 0.00000 0.16800 1.00000 0.02100 O3 0.13080 0.16920 0.39070 1.00000 0.01100 O4 0.13030 0.50000 0.39830 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 0.03200 0.02900 0.03900 0.00000 0.00600 0.00000 NaA 0.03200 0.02900 0.03900 0.00000 0.00600 0.00000 MgM1 0.01200 0.00900 0.01900 0.00000 0.00400 0.00000 Fe2+M1 0.01200 0.00900 0.01900 0.00000 0.00400 0.00000 TiM1 0.01200 0.00900 0.01900 0.00000 0.00400 0.00000 MgM2 0.01000 0.01500 0.01700 0.00000 0.00200 0.00000 Fe2+M2 0.01000 0.01500 0.01700 0.00000 0.00200 0.00000 TiM2 0.01000 0.01500 0.01700 0.00000 0.00200 0.00000 AlT 0.00700 0.00600 0.00900 0.00000 0.00000 -0.00100 SiT 0.00700 0.00600 0.00900 0.00000 0.00000 -0.00100 O1 0.02000 0.02400 0.01900 -0.00600 0.00400 -0.00200 O2 0.03000 0.01200 0.02100 0.00000 0.00100 0.00000 O3 0.01000 0.00900 0.01400 0.00200 0.00100 -0.00200 O4 0.01000 0.01100 0.01500 0.00000 0.00100 0.00000