data_global _amcsd_formula_title 'NaGaSi2O6' loop_ _publ_author_name 'Nestola F' 'Rotiroti N' 'Bruno M' 'Tribaudino M' 'van Smaalen S' 'Ohashi H' 'Redhammer G J' _journal_name_full 'American Mineralogist' _journal_volume 92 _journal_year 2007 _journal_page_first 560 _journal_page_last 569 _publ_section_title ; Low-temperature behavior of NaGaSi2O6 Sample: T = 145 K ; _database_code_amcsd 0004310 _chemical_formula_sum 'Na Ga Si2 O6' _cell_length_a 9.5453 _cell_length_b 8.6864 _cell_length_c 5.2662 _cell_angle_alpha 90 _cell_angle_beta 107.630 _cell_angle_gamma 90 _cell_volume 416.135 _exptl_crystal_density_diffrn 3.909 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Na 0.00000 0.30047 0.25000 0.00620 Ga 0.00000 0.90232 0.25000 0.00201 Si 0.29121 0.09129 0.23263 0.00206 O1 0.11187 0.07812 0.13369 0.00300 O2 0.35880 0.25936 0.30240 0.00390 O3 0.35303 0.00986 0.00795 0.00360