data_global _chemical_name_mineral 'Bavenite' loop_ _publ_author_name 'Lussier A J' 'Hawthorne F C' _journal_name_full 'Mineralogical Magazine' _journal_volume 75 _journal_year 2011 _journal_page_first 213 _journal_page_last 239 _publ_section_title ; Short-range constraints on chemical and structural variations in bavenite Sample: 32BAV ; _database_code_amcsd 0019890 _chemical_compound_source 'Marsikov, Schinderhubel 1, Czech Republic' _chemical_formula_sum 'Na.014 Ca3.977 Si9.01 Be2.885 Al1.105 O28 H2' _cell_length_a 23.1995 _cell_length_b 4.9743 _cell_length_c 19.4255 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 2241.728 _exptl_crystal_density_diffrn 2.722 _symmetry_space_group_name_H-M 'C m c m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,y,z' '1/2-x,1/2+y,z' 'x,-y,-z' '1/2+x,1/2-y,-z' 'x,y,1/2-z' '1/2+x,1/2+y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-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 Na 0.08269 0.25323 0.15349 0.00350 0.01248 Ca 0.08269 0.25323 0.15349 0.99425 0.01248 SiT1 0.00000 0.77480 0.25000 1.00000 0.00740 BeT2 0.12453 0.82060 0.25000 1.00000 0.00900 SiT3 0.00000 0.72180 0.10384 0.55750 0.00760 BeT3 0.00000 0.72180 0.10384 0.44250 0.00760 SiT4 0.09378 0.50000 0.00000 0.44750 0.00650 AlT4 0.09378 0.50000 0.00000 0.55250 0.00650 SiT5 0.17030 0.00000 0.00000 1.00000 0.00900 SiT6 0.21400 0.86186 0.14435 1.00000 0.00779 O1 0.00000 0.57480 0.18221 1.00000 0.00940 O2 0.00000 0.03650 0.10951 1.00000 0.01190 O3 0.05758 0.59590 0.06888 1.00000 0.01340 O4 0.13074 0.23930 0.03352 1.00000 0.01410 O5 0.20825 0.87240 0.06123 1.00000 0.01370 O6 0.23303 0.55970 0.16607 1.00000 0.01100 O7 0.15429 0.93800 0.18013 1.00000 0.01100 O8 0.12109 0.49380 0.25000 1.00000 0.01090 O9 0.05811 0.95640 0.25000 1.00000 0.00830 H8 0.16250 0.45540 0.25000 1.00000 0.01500 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 Na 0.01310 0.01420 0.01020 -0.00150 -0.00071 0.00150 Ca 0.01310 0.01420 0.01020 -0.00150 -0.00071 0.00150 SiT1 0.00610 0.00750 0.00840 0.00000 0.00000 0.00000 BeT2 0.00940 0.01000 0.00760 0.00010 0.00000 0.00000 SiT3 0.00840 0.00870 0.00580 0.00000 0.00000 0.00070 BeT3 0.00840 0.00870 0.00580 0.00000 0.00000 0.00070 SiT4 0.00850 0.00670 0.00430 0.00000 0.00000 0.00020 AlT4 0.00850 0.00670 0.00430 0.00000 0.00000 0.00020 SiT5 0.00890 0.00980 0.00830 0.00000 0.00000 -0.00130 SiT6 0.00790 0.00820 0.00730 0.00020 0.00090 0.00020 O1 0.01180 0.00960 0.00670 0.00000 0.00000 -0.00100 O2 0.01090 0.00840 0.01640 0.00000 0.00000 0.00090 O3 0.01420 0.01400 0.01200 0.00430 0.00480 -0.00030 O4 0.01470 0.01500 0.01260 0.00410 0.00030 -0.00300 O5 0.01390 0.01800 0.00940 0.00290 -0.00040 0.00020 O6 0.01260 0.00870 0.01170 0.00210 0.00210 0.00230 O7 0.01040 0.01120 0.01150 0.00170 0.00390 0.00290 O8 0.00990 0.00650 0.01630 -0.00010 0.00000 0.00000 O9 0.00680 0.00770 0.01030 0.00040 0.00000 0.00000