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(1) Note: 2M_1 polytype ; _database_code_amcsd 0004305 _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 5.3341 _cell_length_b 9.2403 _cell_length_c 20.085 _cell_angle_alpha 90 _cell_angle_beta 95.151 _cell_angle_gamma 90 _cell_volume 985.965 _exptl_crystal_density_diffrn 3.086 _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 0.03400 NaA 0.00000 0.08430 0.25000 0.07000 0.03400 MgM1 0.75000 0.25000 0.00000 0.50000 0.01100 Fe2+M1 0.75000 0.25000 0.00000 0.37000 0.01100 TiM1 0.75000 0.25000 0.00000 0.13000 0.01100 MgM2 0.24090 0.08030 0.00000 0.50000 0.01300 Fe2+M2 0.24090 0.08030 0.00000 0.37000 0.01300 TiM2 0.24090 0.08030 0.00000 0.13000 0.01300 AlT1 0.46190 0.25030 0.13790 0.29000 0.01100 SiT1 0.46190 0.25030 0.13790 0.71000 0.01100 AlT2 0.96380 0.41750 0.13800 0.29000 0.01100 SiT2 0.96380 0.41750 0.13800 0.71000 0.01100 O11 0.73730 0.31950 0.16580 1.00000 0.02000 O21 0.23710 0.34790 0.16690 1.00000 0.01900 O22 0.44410 0.08330 0.16670 1.00000 0.01900 O31 0.43070 0.24990 0.05470 1.00000 0.01300 O32 0.93800 0.41910 0.05500 1.00000 0.01200 O41 0.93530 0.08290 0.05060 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 0.03000 0.03100 0.04100 0.00000 0.00400 0.00000 NaA 0.03000 0.03100 0.04100 0.00000 0.00400 0.00000 MgM1 0.00800 0.00900 0.01700 0.00100 0.00300 0.00100 Fe2+M1 0.00800 0.00900 0.01700 0.00100 0.00300 0.00100 TiM1 0.00800 0.00900 0.01700 0.00100 0.00300 0.00100 MgM2 0.01300 0.00900 0.01500 0.00400 0.00100 0.00300 Fe2+M2 0.01300 0.00900 0.01500 0.00400 0.00100 0.00300 TiM2 0.01300 0.00900 0.01500 0.00400 0.00100 0.00300 AlT1 0.00900 0.01000 0.01400 0.00100 0.00100 0.00100 SiT1 0.00900 0.01000 0.01400 0.00100 0.00100 0.00100 AlT2 0.00900 0.00900 0.01500 0.00100 0.00100 0.00100 SiT2 0.00900 0.00900 0.01500 0.00100 0.00100 0.00100 O11 0.01600 0.02700 0.01700 -0.00700 0.00100 -0.00100 O21 0.01700 0.02200 0.01900 0.00600 0.00100 -0.00300 O22 0.03000 0.01300 0.01500 0.00000 0.00500 0.00000 O31 0.01200 0.01300 0.01400 0.00000 0.00200 -0.00100 O32 0.01200 0.01100 0.01300 0.00100 0.00300 0.00100 O41 0.01300 0.00900 0.01500 0.00300 0.00200 0.00200