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: 2ABAV ; _database_code_amcsd 0019874 _chemical_compound_source 'Rincon, San Diego County, California' _chemical_formula_sum 'Na.05 Ca3.94 Si9.01 Be2.811 Al1.179 O28 H2' _cell_length_a 23.2080 _cell_length_b 4.9833 _cell_length_c 19.4266 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 2246.733 _exptl_crystal_density_diffrn 2.718 _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 0.08316 0.25083 0.15316 0.01250 0.01349 Ca 0.08316 0.25083 0.15316 0.98500 0.01349 SiT1 0.00000 0.77620 0.25000 1.00000 0.00860 BeT2 0.12460 0.81880 0.25000 1.00000 0.00740 SiT3 0.00000 0.72240 0.10362 0.59450 0.00830 BeT3 0.00000 0.72240 0.10362 0.40550 0.00830 SiT4 0.09415 0.50000 0.00000 0.41050 0.00650 AlT4 0.09415 0.50000 0.00000 0.58950 0.00650 SiT5 0.17025 0.00000 0.00000 1.00000 0.00990 SiT6 0.21413 0.85950 0.14428 1.00000 0.00859 O1 0.00000 0.57570 0.18208 1.00000 0.00980 O2 0.00000 0.03660 0.11016 1.00000 0.01270 O3 0.05747 0.59720 0.06905 1.00000 0.01440 O4 0.13055 0.23940 0.03389 1.00000 0.01430 O5 0.20832 0.87020 0.06111 1.00000 0.01390 O6 0.23315 0.55830 0.16618 1.00000 0.01150 O7 0.15428 0.93490 0.18009 1.00000 0.01210 O8 0.12108 0.49190 0.25000 1.00000 0.01130 O9 0.05802 0.95550 0.25000 1.00000 0.00870 H8 0.16270 0.45900 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 0.01460 0.01360 0.01220 -0.00120 -0.00107 0.00170 Ca 0.01460 0.01360 0.01220 -0.00120 -0.00107 0.00170 SiT1 0.00810 0.00860 0.00920 0.00000 0.00000 0.00000 BeT2 0.00670 0.00900 0.00700 -0.00080 0.00000 0.00000 SiT3 0.00910 0.00870 0.00720 0.00000 0.00000 -0.00020 BeT3 0.00910 0.00870 0.00720 0.00000 0.00000 -0.00020 SiT4 0.00890 0.00550 0.00520 0.00000 0.00000 0.00020 AlT4 0.00890 0.00550 0.00520 0.00000 0.00000 0.00020 SiT5 0.01080 0.01010 0.00890 0.00000 0.00000 -0.00090 SiT6 0.00920 0.00810 0.00840 0.00030 0.00090 0.00020 O1 0.01380 0.00850 0.00730 0.00000 0.00000 -0.00240 O2 0.01210 0.00930 0.01680 0.00000 0.00000 -0.00110 O3 0.01720 0.01360 0.01240 0.00430 0.00440 0.00070 O4 0.01600 0.01410 0.01300 0.00310 -0.00010 -0.00290 O5 0.01650 0.01620 0.00900 0.00210 0.00060 0.00110 O6 0.01310 0.00780 0.01350 0.00240 0.00250 0.00120 O7 0.01190 0.01270 0.01170 0.00340 0.00480 0.00230 O8 0.01080 0.00730 0.01590 -0.00040 0.00000 0.00000 O9 0.00860 0.00840 0.00910 -0.00070 0.00000 0.00000