data_global _chemical_name_mineral 'Fluormayenite' loop_ _publ_author_name 'Costa U' 'Ballirano P' _journal_name_full 'Powder Diffraction' _journal_volume 15 _journal_year 2000 _journal_page_first 56 _journal_page_last 61 _publ_section_title ; Improved powder X-ray data for the cement phase Ca12Al14O32F2 (C11A7f) ; _database_code_amcsd 0019955 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Ca6 Al7 O16 F.87' _cell_length_a 11.96269 _cell_length_b 11.96269 _cell_length_c 11.96269 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1711.932 _exptl_crystal_density_diffrn 2.723 _symmetry_space_group_name_H-M 'I -4 3 d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '1/2-z,x,-y' '-z,1/2+x,1/2-y' '1/2-y,z,-x' '-y,1/2+z,1/2-x' '1/2-x,y,-z' '-x,1/2+y,1/2-z' '1/4+x,3/4-z,1/4-y' '3/4+x,1/4-z,3/4-y' '1/4+z,3/4-y,1/4-x' '3/4+z,1/4-y,3/4-x' '1/4+y,3/4-x,1/4-z' '3/4+y,1/4-x,3/4-z' '1/4+x,1/4+z,1/4+y' '3/4+x,3/4+z,3/4+y' '1/4+z,1/4+y,1/4+x' '3/4+z,3/4+y,3/4+x' '1/4+y,1/4+x,1/4+z' '3/4+y,3/4+x,3/4+z' '-z,1/2-x,y' '1/2-z,-x,1/2+y' '-y,1/2-z,x' '1/2-y,-z,1/2+x' '-x,1/2-y,z' '1/2-x,-y,1/2+z' '1/2+z,1/2-x,-y' '+z,-x,1/2-y' '1/2+y,1/2-z,-x' '+y,-z,1/2-x' '1/2+x,1/2-y,-z' '+x,-y,1/2-z' '3/4-x,3/4+z,1/4-y' '1/4-x,1/4+z,3/4-y' '3/4-z,3/4+y,1/4-x' '1/4-z,1/4+y,3/4-x' '3/4-y,3/4+x,1/4-z' '1/4-y,1/4+x,3/4-z' '3/4-x,1/4-z,1/4+y' '1/4-x,3/4-z,3/4+y' '3/4-z,1/4-y,1/4+x' '1/4-z,3/4-y,3/4+x' '3/4-y,1/4-x,1/4+z' '1/4-y,3/4-x,3/4+z' 'z,x,y' '1/2+z,1/2+x,1/2+y' 'y,z,x' '1/2+y,1/2+z,1/2+x' 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 Ca1 0.11020 0.00000 0.25000 0.68900 0.00660 Ca2 0.06540 0.00000 0.25000 0.31100 0.00660 Al1 0.23096 0.23096 0.23096 1.00000 ? Al2 0.37500 0.00000 0.25000 1.00000 ? O1 0.19310 0.28600 0.10000 1.00000 ? O2 0.31480 0.31480 0.31480 1.00000 ? F 0.87500 0.00000 0.25000 0.29000 0.03000 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 Al1 0.00690 0.00690 0.00690 -0.00110 -0.00110 -0.00110 Al2 0.00600 0.01000 0.01000 0.00000 0.00000 0.00000 O1 0.01670 0.00700 0.00300 -0.00500 0.00000 0.00600 O2 0.01100 0.01100 0.01100 0.00200 0.00200 0.00200