data_global _chemical_name_mineral 'Yoderite' loop_ _publ_author_name 'Fleet S G' 'Megaw H D' _journal_name_full 'Acta Crystallographica' _journal_volume 15 _journal_year 1962 _journal_page_first 721 _journal_page_last 728 _publ_section_title ; The crystal structure of yoderite ; _database_code_amcsd 0009274 _chemical_compound_source 'Mautia Hill, Tanzania' _chemical_formula_sum '(Mg Ca.12 Fe.24 Al2.64) Si2 O10 H' _cell_length_a 8.035 _cell_length_b 5.805 _cell_length_c 7.346 _cell_angle_alpha 90 _cell_angle_beta 105.63 _cell_angle_gamma 90 _cell_volume 329.970 _exptl_crystal_density_diffrn 3.331 _symmetry_space_group_name_H-M 'P 1 21/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-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 MgA1 0.29510 0.00540 0.17790 0.25000 0.00266 CaA1 0.29510 0.00540 0.17790 0.03000 0.00266 FeA1 0.29510 0.00540 0.17790 0.06000 0.00266 AlA1 0.29510 0.00540 0.17790 0.66000 0.00266 MgA2 0.38940 0.25000 0.62970 0.25000 0.00266 CaA2 0.38940 0.25000 0.62970 0.03000 0.00266 FeA2 0.38940 0.25000 0.62970 0.06000 0.00266 AlA2 0.38940 0.25000 0.62970 0.66000 0.00266 MgA3 0.05540 0.25000 0.35470 0.25000 0.00266 CaA3 0.05540 0.25000 0.35470 0.03000 0.00266 FeA3 0.05540 0.25000 0.35470 0.06000 0.00266 AlA3 0.05540 0.25000 0.35470 0.66000 0.00266 Si1 0.06240 0.25000 0.79790 1.00000 0.00291 Si2 0.33970 0.75000 0.80260 1.00000 0.00291 O1 0.05710 0.98170 0.21620 1.00000 0.01064 O2 0.45450 0.97700 0.78180 1.00000 0.01064 O3 0.14550 0.25000 0.61610 1.00000 0.01064 O4 0.22060 0.25000 0.99070 1.00000 0.01064 O5 0.29880 0.25000 0.36070 1.00000 0.01064 O6 0.16860 0.75000 0.63380 1.00000 0.01064 O7 0.28180 0.75000 0.00370 1.00000 0.01064 O-H8 0.36330 0.75000 0.36310 1.00000 0.01064