data_global _chemical_name_mineral 'Enstatite' loop_ _publ_author_name 'Camara F' 'Iezzi G' 'Tiepolo M' 'Oberti R' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 33 _journal_year 2006 _journal_page_first 475 _journal_page_last 483 _publ_section_title ; The crstal chemistry of lithium and Fe3+ in synthetic orthopyroxene Sample: LMFPX5 ; _database_code_amcsd 0009043 _chemical_formula_sum 'Mg1.33 Fe.47 Li.2 Si2 O6' _cell_length_a 18.2162 _cell_length_b 8.8194 _cell_length_c 5.2054 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 836.279 _exptl_crystal_density_diffrn 3.370 _symmetry_space_group_name_H-M 'P b c a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-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 MgM1 0.37540 0.65130 0.87400 0.74000 0.00836 Fe3+M1 0.37540 0.65130 0.87400 0.20000 0.00836 Fe2+M1 0.37540 0.65130 0.87400 0.06000 0.00836 MgM2 0.37750 0.48480 0.36570 0.59000 0.00925 Fe2+M2 0.37750 0.48480 0.36570 0.21000 0.00925 LiM2 0.37750 0.48480 0.36570 0.20000 0.00925 Sia 0.27210 0.34080 0.05370 1.00000 0.00570 Sib 0.47400 0.33710 0.79430 1.00000 0.00583 O1a 0.18350 0.33780 0.04340 1.00000 0.00773 O1b 0.56300 0.33770 0.79620 1.00000 0.00798 O2a 0.31040 0.50300 0.05000 1.00000 0.00899 O2b 0.43410 0.48670 0.69690 1.00000 0.00988 O3a 0.30320 0.22800 -0.17120 1.00000 0.00836 O3b 0.44750 0.20140 0.59300 1.00000 0.00937