data_global _chemical_name_mineral 'Julgoldite-(Fe3+)' loop_ _publ_author_name 'Artioli G' 'Geiger C A' 'Dapiaggi M' _journal_name_full 'American Mineralogist' _journal_volume 88 _journal_year 2003 _journal_page_first 1084 _journal_page_last 1090 _publ_section_title ; The crystal chemistry of julgoldite-Fe3+ from Bombay, India, studied using synchrotron X-ray powder diffraction and 57Fe Mossbauer spectroscopy ; _database_code_amcsd 0003146 _chemical_formula_sum 'Ca2 Fe2.688 Al.312 Si3 O14 H4' _cell_length_a 8.8879 _cell_length_b 6.0580 _cell_length_c 19.3321 _cell_angle_alpha 90 _cell_angle_beta 97.498 _cell_angle_gamma 90 _cell_volume 1031.996 _exptl_crystal_density_diffrn 3.546 _symmetry_space_group_name_H-M 'A 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '-x,y,-z' '-x,1/2+y,1/2-z' 'x,-y,z' 'x,1/2-y,1/2+z' '-x,-y,-z' '-x,1/2-y,1/2-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 Ca(1) 0.25800 0.50000 0.33920 1.00000 0.01700 Ca(2) 0.18190 0.50000 0.15340 1.00000 0.01700 FeX 0.50000 0.25000 0.25000 0.68800 0.01200 AlX 0.50000 0.25000 0.25000 0.31200 0.01200 FeY 0.25320 0.25000 0.49560 1.00000 0.01200 Si(1) 0.04900 0.00000 0.09770 1.00000 0.00600 Si(2) 0.16800 0.00000 0.24790 1.00000 0.00600 Si(3) 0.46800 0.00000 0.40400 1.00000 0.00600 O(1) 0.13200 0.23300 0.07930 1.00000 0.01300 O(2) 0.26900 0.22400 0.24580 1.00000 0.01300 O(3) 0.37000 0.22800 0.41020 1.00000 0.01300 O(4) 0.12300 0.50000 0.44300 1.00000 0.01300 O-H(5) 0.11600 0.00000 0.45200 1.00000 0.01300 O(6) 0.37300 0.50000 0.04300 1.00000 0.01300 O-H(7) 0.38800 0.00000 0.03500 1.00000 0.01300 O(8) 0.03800 0.00000 0.18110 1.00000 0.01300 O(9) 0.46400 0.50000 0.17180 1.00000 0.01300 O-H(10) 0.07000 0.00000 0.31380 1.00000 0.01300 O-H(11) 0.50900 0.50000 0.32200 1.00000 0.01300