data_global _amcsd_formula_title 'Al5.03Ge.97Pb.15Nd.06O9.71' loop_ _publ_author_name 'Saalfeld H' 'Klaska K H' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 172 _journal_year 1985 _journal_page_first 129 _journal_page_last 133 _publ_section_title ; A Pb/Nd-stabilized mullite of the composition Al5.03Ge0.97Pb0.15Nd0.06O9.71 ; _database_code_amcsd 0010935 _chemical_formula_sum 'Al2.5 Ge.486 Pb.083 Nd.029 O4.855' _cell_length_a 7.6648 _cell_length_b 7.7914 _cell_length_c 2.9213 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 174.459 _exptl_crystal_density_diffrn 3.840 _symmetry_space_group_name_H-M 'P 21 21 2' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-x,1/2+y,-z' '1/2+x,1/2-y,-z' '-x,-y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Al1 0.00000 0.00000 0.00520 1.00000 Al2 0.35000 0.16180 0.50120 0.55000 Al* 0.23150 0.29870 0.48660 0.20000 Ge 0.35000 0.16180 0.50120 0.24300 Pb1 0.11820 0.36660 0.48100 0.02760 Nd1 0.11820 0.36660 0.48100 0.00880 Pb2 0.45430 0.06210 0.49340 0.01380 Nd2 0.45430 0.06210 0.49340 0.00550 O1 0.37170 0.28780 -0.00900 1.00000 O2 0.36210 0.57880 0.49130 1.00000 O3 0.50000 0.00000 0.43390 0.46140 O* 0.04720 0.44290 0.53730 0.19680