data_global _chemical_name_mineral 'Annite' loop_ _publ_author_name 'Brigatti M F' 'Frigieri P' 'Ghezzo c' 'Poppi L' _journal_name_full 'American Mineralogist' _journal_volume 85 _journal_year 2000 _journal_page_first 436 _journal_page_last 448 _publ_section_title ; Crystal chemistry of Al-rich biotites coexisting with muscovites in peraluminous granites Sample: A4 ; _database_code_amcsd 0002385 _chemical_compound_source 'Sos Canales pluton, Sardinia Island, Italy' _chemical_formula_sum '(K.96 Na.04) Fe1.5 Mg.76 Ti.22 Al1.62 Si2.72 O11.96 F.04 H1.8' _cell_length_a 5.352 _cell_length_b 9.268 _cell_length_c 10.255 _cell_angle_alpha 90 _cell_angle_beta 100.27 _cell_angle_gamma 90 _cell_volume 500.522 _exptl_crystal_density_diffrn 3.087 _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 KA 0.00000 0.50000 0.00000 0.96000 NaA 0.00000 0.50000 0.00000 0.04000 Fe2+1 0.00000 0.00000 0.50000 0.70000 Mg1 0.00000 0.00000 0.50000 0.12000 Fe2+2 0.00000 0.33320 0.50000 0.40000 Mg2 0.00000 0.33320 0.50000 0.32000 Ti2 0.00000 0.33320 0.50000 0.11000 Al2 0.00000 0.33320 0.50000 0.17000 SiT 0.07500 0.16714 0.22626 0.68000 AlT 0.07500 0.16714 0.22626 0.32000 O1 0.01300 0.00000 0.17040 1.00000 O2 0.32720 0.22840 0.16920 1.00000 O3 0.13160 0.16900 0.39160 1.00000 O-H4 0.12800 0.50000 0.39720 0.90000 O4 0.12800 0.50000 0.39720 0.08000 F4 0.12800 0.50000 0.39720 0.02000 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 0.02090 0.00730 0.00650 0.00000 0.00250 0.00000 NaA 0.02090 0.00730 0.00650 0.00000 0.00250 0.00000 Fe2+1 0.00480 0.00160 0.00270 0.00000 0.00130 0.00000 Mg1 0.00480 0.00160 0.00270 0.00000 0.00130 0.00000 Fe2+2 0.00390 0.00200 0.00247 0.00000 0.00060 0.00000 Mg2 0.00390 0.00200 0.00247 0.00000 0.00060 0.00000 Ti2 0.00390 0.00200 0.00247 0.00000 0.00060 0.00000 Al2 0.00390 0.00200 0.00247 0.00000 0.00060 0.00000 SiT 0.00480 0.00207 0.00246 0.00000 0.00080 -0.00017 AlT 0.00480 0.00207 0.00246 0.00000 0.00080 -0.00017 O1 0.01900 0.00320 0.00410 0.00000 0.00030 0.00000 O2 0.01360 0.00540 0.00440 -0.00160 0.00220 -0.00020 O3 0.01000 0.00350 0.00290 -0.00020 0.00100 0.00000 O-H4 0.00930 0.00540 0.00250 0.00000 0.00050 0.00000 O4 0.00930 0.00540 0.00250 0.00000 0.00050 0.00000 F4 0.00930 0.00540 0.00250 0.00000 0.00050 0.00000