data_global _chemical_name_mineral 'Batisite' loop_ _publ_author_name 'Schmahl W W' 'Tillmanns E' _journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte' _journal_volume 1987 _journal_year 1987 _journal_page_first 107 _journal_page_last 118 _publ_section_title ; Isomorphic substitutions, straight Si-O-Si geometry, and disorder of tetrahedral tilting in batisite, (Ba,K)(K,Na)Na(Ti,Fe,Nb,Zr)Si4O14 ; _database_code_amcsd 0014812 _chemical_compound_source 'tertiary nephelinite-leucite volcanic rocks, Westeifel, W. Germany' _chemical_formula_sum 'Ba.63 K1.07 Na1.3 (Ti1.44 Nb.12 Fe.32 Zr.12) Si4 O14' _cell_length_a 10.499 _cell_length_b 13.913 _cell_length_c 8.087 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1181.289 _exptl_crystal_density_diffrn 3.393 _symmetry_space_group_name_H-M 'I m c m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '1/2-x,y,z' '-x,1/2+y,1/2+z' '1/2+x,-y,-z' '+x,1/2-y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' '1/2+x,-y,z' '+x,1/2-y,1/2+z' '1/2-x,y,-z' '-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-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 Ba1 0.25000 0.24510 0.00000 0.63000 0.00912 K1 0.25000 0.24510 0.00000 0.37000 0.00912 K2 0.25000 0.68370 0.50000 0.70000 0.02254 Na2 0.25000 0.68370 0.50000 0.30000 0.02254 Na 0.00000 0.00000 0.00000 1.00000 0.03014 Ti4+ 0.25000 0.47100 0.23840 0.72000 0.02305 Nb3+ 0.25000 0.47100 0.23840 0.06000 0.02305 Fe2+ 0.25000 0.47100 0.23840 0.16000 0.02305 Zr4+ 0.25000 0.47100 0.23840 0.06000 0.02305 Si 0.52520 0.35528 0.19660 1.00000 0.00899 O1 0.61720 0.06700 0.22140 1.00000 0.01406 O2 0.37940 0.13560 0.24590 1.00000 0.01710 O3 0.58020 0.25000 0.25000 1.00000 0.00317 O4 0.53260 0.35690 0.00000 1.00000 0.00519 O5 0.75000 0.95800 0.00000 1.00000 0.00139 O6 0.75000 0.97180 0.50000 1.00000 0.00215 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 Ba1 0.00949 0.00941 0.00858 0.00000 0.00000 0.00000 K1 0.00949 0.00941 0.00858 0.00000 0.00000 0.00000 K2 0.01363 0.03972 0.01451 0.00000 0.00000 0.00000 Na2 0.01363 0.03972 0.01451 0.00000 0.00000 0.00000 Na 0.04663 0.04030 0.00355 0.00313 0.00000 0.00000 Ti4+ 0.00776 0.00853 0.05298 0.00000 0.00000 -0.00296 Nb3+ 0.00776 0.00853 0.05298 0.00000 0.00000 -0.00296 Fe2+ 0.00776 0.00853 0.05298 0.00000 0.00000 -0.00296 Zr4+ 0.00776 0.00853 0.05298 0.00000 0.00000 -0.00296 Si 0.00821 0.00981 0.00898 -0.00030 -0.00030 -0.00051 O1 0.01111 0.01324 0.01796 0.00229 0.00108 -0.00262 O2 0.00838 0.01255 0.03055 -0.00081 -0.00258 0.00160 O3 0.01134 0.00873 0.07561 0.00000 0.00000 0.00507 O4 0.04300 0.10797 0.00520 -0.02324 0.00000 0.00000 O5 0.01921 0.01157 0.01001 0.00000 0.00000 0.00000 O6 0.01402 0.02206 0.02889 0.00000 0.00000 0.00000