data_global _chemical_name_mineral 'Jadeite' loop_ _publ_author_name 'Tribaudino M' 'Mantovani L' _journal_name_full 'Mineralogical Magazine' _journal_volume 78 _journal_year 2014 _journal_page_first 311 _journal_page_last 324 _publ_section_title ; Thermal expansion in C2/c pyroxenes: a review and new high-temperature structural data for a pyroxene of composition (Na0.53Ca0.47)(Al0.53Fe0.47)Si2O6 (Jd53Hd47) Note: T = 300 C ; _database_code_amcsd 0020439 _chemical_compound_source 'Synthetic' _chemical_formula_sum '(Na.53 Ca.47) (Al.53 Fe.47) Si2 O6' _cell_length_a 9.616 _cell_length_b 8.804 _cell_length_c 5.274 _cell_angle_alpha 90 _cell_angle_beta 106.67 _cell_angle_gamma 90 _cell_volume 427.728 _exptl_crystal_density_diffrn 3.474 _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 Na 0.00000 0.30040 0.25000 0.53000 0.02250 Ca 0.00000 0.30040 0.25000 0.47000 0.02250 Al 0.00000 0.90440 0.25000 0.53000 0.01290 Fe 0.00000 0.90440 0.25000 0.47000 0.01290 Si 0.28862 0.09230 0.22970 1.00000 0.01010 O1 0.11280 0.08040 0.13440 1.00000 0.01710 O2 0.36020 0.25460 0.30630 1.00000 0.01810 O3 0.35170 0.01310 0.00090 1.00000 0.01370 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Na 0.03240 0.01400 0.01720 0.00000 0.00100 0.00000 Ca 0.03240 0.01400 0.01720 0.00000 0.00100 0.00000 Al 0.01290 0.01410 0.01200 0.00000 0.00370 0.00000 Fe 0.01290 0.01410 0.01200 0.00000 0.00370 0.00000 Si 0.01180 0.01040 0.00900 0.00030 0.00440 -0.00050 O1 0.00800 0.02400 0.01700 0.00000 -0.00070 -0.00700 O2 0.02000 0.01600 0.01500 -0.00400 0.00030 -0.00270 O3 0.01300 0.01700 0.01000 -0.00290 0.00180 -0.00660