data_global _chemical_name_mineral 'Thorite' loop_ _publ_author_name 'Fuchs L H' 'Gebert E' _journal_name_full 'American Mineralogist' _journal_volume 43 _journal_year 1958 _journal_page_first 243 _journal_page_last 248 _publ_section_title ; X-ray studies of synthetic coffinite, thorite and uranothorites ; _database_code_amcsd 0000084 _chemical_formula_sum 'Th Si O4' _cell_length_a 7.142 _cell_length_b 7.142 _cell_length_c 6.327 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 322.729 _exptl_crystal_density_diffrn 6.671 _symmetry_space_group_name_H-M 'I 41/a m d' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,1/2-x,1/4+z' '1/2-y,-x,3/4+z' '1/2+y,1/2+x,1/2-z' '+y,+x,-z' '1/2+y,1/2-x,1/2-z' '+y,-x,-z' '-y,1/2+x,1/4+z' '1/2-y,+x,3/4+z' '1/2+x,1/2-y,1/2+z' '+x,-y,+z' '1/2-x,y,3/4-z' '-x,1/2+y,1/4-z' '1/2+x,y,3/4-z' '+x,1/2+y,1/4-z' '1/2-x,1/2-y,1/2+z' '-x,-y,+z' '1/2+y,x,3/4+z' '+y,1/2+x,1/4+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' '1/2+y,-x,3/4+z' '+y,1/2-x,1/4+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,1/4-z' '1/2+x,-y,3/4-z' '-x,1/2-y,1/4-z' '1/2-x,-y,3/4-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Th 0.00000 0.00000 0.00000 Si 0.00000 0.00000 0.50000 O 0.00000 0.16600 0.34700