data_global _chemical_name_mineral 'Iimoriite-(Y)' loop_ _publ_author_name 'Hughes J M' 'Foord E E' 'Jai-Nhuknan J' 'Bell J M' _journal_name_full 'The Canadian Mineralogist' _journal_volume 34 _journal_year 1996 _journal_page_first 817 _journal_page_last 820 _publ_section_title ; The atomic arrangement of iimoriite-(Y), Y2(SiO4)(CO3) ; _database_code_amcsd 0005503 _chemical_compound_source 'Bokan Mountain, Prince of Wales Island, Alaska, USA' _chemical_formula_sum 'Y2 Si C O7' _cell_length_a 6.5495 _cell_length_b 6.6291 _cell_length_c 6.4395 _cell_angle_alpha 116.364 _cell_angle_beta 92.556 _cell_angle_gamma 95.506 _cell_volume 248.156 _exptl_crystal_density_diffrn 4.415 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Y1 0.16782 0.18941 0.25715 0.00619 Y2 0.41401 0.70249 0.25067 0.00439 Si 0.65780 0.24110 0.26320 0.00836 C -0.08920 0.73500 0.19360 0.00988 O1 0.09610 0.83660 0.26490 0.01127 O2 0.53310 0.34010 0.11370 0.01001 O3 0.48340 0.08830 0.33120 0.00912 O4 0.16820 0.90860 0.87420 0.01051 O5 0.21650 0.25020 0.65630 0.01241 O6 0.14660 0.37780 0.02420 0.01102 O7 0.25100 0.56330 0.48040 0.01165