data_global _chemical_name_mineral 'Gadolinite-(Y)' loop_ _publ_author_name 'Miyawaki R' 'Nakai I' 'Nagashima K' _journal_name_full 'American Mineralogist' _journal_volume 69 _journal_year 1984 _journal_page_first 948 _journal_page_last 953 _publ_section_title ; A refinement of the crystal structure of gadolinite ; _database_code_amcsd 0000960 _chemical_formula_sum 'Y1.3 Nd.14 Dy.112 Sm.084 Gd.084 Ce.08 Er.042 Fe.864 Si2 Be2 O10' _cell_length_a 10.000 _cell_length_b 7.565 _cell_length_c 4.768 _cell_angle_alpha 90 _cell_angle_beta 90.31 _cell_angle_gamma 90 _cell_volume 360.694 _exptl_crystal_density_diffrn 4.424 _symmetry_space_group_name_H-M 'P 1 21/a 1' 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 Y 0.32854 0.10828 0.00013 0.65000 Nd 0.32854 0.10828 0.00013 0.07000 Dy 0.32854 0.10828 0.00013 0.05600 Sm 0.32854 0.10828 0.00013 0.04200 Gd 0.32854 0.10828 0.00013 0.04200 Ce 0.32854 0.10828 0.00013 0.04000 Er 0.32854 0.10828 0.00013 0.02100 Fe 0.00000 0.00000 0.00000 0.86400 Si 0.07822 0.27850 0.51920 1.00000 Be 0.33550 0.41430 0.46420 1.00000 O1 0.03030 0.41310 0.76070 1.00000 O2 0.45180 0.28710 0.32480 1.00000 O3 0.19540 0.34760 0.30890 1.00000 O4 0.14190 0.10650 0.68470 1.00000 O5 0.33290 0.41260 0.79790 1.00000 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 Y 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Nd 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Dy 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Sm 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Gd 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Ce 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Er 0.00745 0.00899 0.00713 -0.00077 -0.00121 -0.00013 Fe 0.00684 0.01163 0.00703 0.00142 -0.00002 0.00048 Si 0.00654 0.00719 0.00599 -0.00034 -0.00007 -0.00018 Be 0.00709 0.00696 0.00576 -0.00038 -0.00024 0.00055 O1 0.01013 0.01044 0.00864 0.00115 0.00000 -0.00238 O2 0.00811 0.01044 0.00829 0.00268 -0.00193 -0.00073 O3 0.00709 0.01276 0.00818 -0.00268 -0.00048 0.00238 O4 0.01064 0.00725 0.00956 0.00115 -0.00193 0.00091 O5 0.01013 0.01392 0.00633 -0.00077 0.00048 0.00000