data_global _amcsd_formula_title 'CdMg(CO3)2' loop_ _publ_author_name 'Graf D L' _journal_name_full 'American Mineralogist' _journal_volume 46 _journal_year 1961 _journal_page_first 1283 _journal_page_last 1316 _publ_section_title ; Crystallographic tables for the rhombohedral carbonates ; _database_code_amcsd 109 _chemical_formula_sum 'Cd Mg C2 O6' _cell_length_a 4.777 _cell_length_b 4.777 _cell_length_c 15.641 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 120.0 _cell_volume 309.105 _exptl_crystal_density_diffrn 4.138 _symmetry_space_group_name_H-M 'R -3 ' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cd 0.0 0.0 0.0 Mg 0.0 0.0 0.5 C 0.0 0.0 0.2435 O 0.4829 -0.0298 0.2789