data_global _chemical_name_mineral 'Jadeite' loop_ _publ_author_name 'Nestola F' 'Ballaran T B' 'Liebske C' 'Thompson R' 'Downs R T' _journal_name_full 'American Mineralogist' _journal_volume 93 _journal_year 2008 _journal_page_first 1005 _journal_page_last 1013 _publ_section_title ; The effect of the hedenbergitic substitution on the compressibility of jadeite Sample: Jd24Hd76, P = 0 GPa ; _database_code_amcsd 0004605 _chemical_compound_source 'Synthetic' _chemical_formula_sum '(Na.24 Ca.76) (Al.24 Fe.76) Si2 O6' _cell_length_a 9.7340 _cell_length_b 8.9103 _cell_length_c 5.2682 _cell_angle_alpha 90 _cell_angle_beta 105.904 _cell_angle_gamma 90 _cell_volume 439.436 _exptl_crystal_density_diffrn 3.583 _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_occupancy _atom_site_U_iso_or_equiv NaM2 0.00000 0.30060 0.25000 0.24000 0.00940 CaM2 0.00000 0.30060 0.25000 0.76000 0.00940 AlM1 0.00000 0.90590 0.25000 0.24000 0.00770 Fe2+M1 0.00000 0.90590 0.25000 0.76000 0.00770 SiT 0.28830 0.09200 0.23150 1.00000 0.00770 O1 0.11460 0.08550 0.14540 1.00000 0.01630 O2 0.36100 0.25080 0.31670 1.00000 0.01070 O3 0.34960 0.01580 0.99870 1.00000 0.01080