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: LMFPX4 ; _database_code_amcsd 0009042 _chemical_formula_sum 'Mg1.33 Fe.47 Li.2 Si2 O6' _cell_length_a 18.2369 _cell_length_b 8.8246 _cell_length_c 5.2076 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 838.077 _exptl_crystal_density_diffrn 3.362 _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 0.65140 0.87340 0.74000 0.00773 Fe3+M1 0.37540 0.65140 0.87340 0.20000 0.00773 Fe2+M1 0.37540 0.65140 0.87340 0.06000 0.00773 MgM2 0.37750 0.48480 0.36550 0.59000 0.00849 Fe2+M2 0.37750 0.48480 0.36550 0.21000 0.00849 LiM2 0.37750 0.48480 0.36550 0.20000 0.00849 Sia 0.27210 0.34080 0.05350 1.00000 0.00519 Sib 0.47390 0.33700 0.79490 1.00000 0.00519 O1a 0.18360 0.33780 0.04280 1.00000 0.00697 O1b 0.56300 0.33800 0.79660 1.00000 0.00760 O2a 0.31040 0.50290 0.04920 1.00000 0.00887 O2b 0.43400 0.48640 0.69640 1.00000 0.00887 O3a 0.30330 0.22750 -0.17140 1.00000 0.00798 O3b 0.44750 0.20060 0.59390 1.00000 0.00823