data_global _amcsd_formula_title 'MgAl26O40' loop_ _publ_author_name 'Jagodzinski H' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 109 _journal_year 1957 _journal_page_first 388 _journal_page_last 409 _publ_section_title ; Die bestimmung einer bei der entmischung Al2O3-ubersattigter Mg-Al-Spinelle auftretenden zwischenstruktur ; _database_code_amcsd 0010583 _chemical_formula_sum 'Mg Al26 O40' _cell_length_a 9.31 _cell_length_b 5.64 _cell_length_c 12.10 _cell_angle_alpha 90 _cell_angle_beta 100.77 _cell_angle_gamma 90 _cell_volume 624.160 _exptl_crystal_density_diffrn 3.634 _symmetry_space_group_name_H-M 'P 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,z' '-x,y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Mg 0.00000 0.00000 0.00000 1.00000 Al1 0.09000 0.00000 0.20000 0.72230 Al2 0.09000 0.50000 0.20000 0.72230 Al3 0.89000 0.25000 0.30000 0.96290 Al4 0.80000 0.00000 0.11000 0.72230 Al5 0.80000 0.50000 0.11000 0.72230 Al6 0.50000 0.00000 0.00000 0.96290 Al7 0.50000 0.50000 0.00000 0.96290 Al8 0.00000 0.00000 0.50000 0.96290 Al9 0.00000 0.50000 0.50000 0.96290 Al10 0.21000 0.25000 0.41000 0.96290 Al11 0.30000 0.25000 0.10000 0.96290 Al12 0.39000 0.00000 0.30000 0.72230 Al13 0.39000 0.50000 0.30000 0.72230 Al14 0.50000 0.25000 0.50000 0.48150 Al15 0.63000 0.25000 0.21000 0.24070 O1 0.16000 0.00000 0.06000 1.00000 O2 0.16000 0.50000 0.06000 1.00000 O3 0.48000 0.00000 0.15000 1.00000 O4 0.48000 0.50000 0.15000 1.00000 O5 0.69000 0.25000 0.05000 1.00000 O6 0.94000 0.25000 0.15000 1.00000 O7 0.26000 0.25000 0.26000 1.00000 O8 0.54000 0.25000 0.35000 1.00000 O9 0.78000 0.00000 0.25000 1.00000 O10 0.78000 0.50000 0.25000 1.00000 O11 0.04000 0.00000 0.35000 1.00000 O12 0.04000 0.50000 0.35000 1.00000 O13 0.35000 0.00000 0.45000 1.00000 O14 0.35000 0.50000 0.45000 1.00000 O15 0.86000 0.25000 0.46000 1.00000