data_global _chemical_name_mineral 'Datolite' loop_ _publ_author_name 'Rinaldi R' 'Gatta G D' 'Angel R J' _journal_name_full 'American Mineralogist' _journal_volume 95 _journal_year 2010 _journal_page_first 1413 _journal_page_last 1421 _publ_section_title ; Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study Note: T = 220 K ; _database_code_amcsd 0017707 _chemical_compound_source 'Valmozzola, Parma, Italy' _chemical_formula_sum 'Ca B Si O5 H' _cell_length_a 4.8325 _cell_length_b 7.6041 _cell_length_c 9.6300 _cell_angle_alpha 90 _cell_angle_beta 90.184 _cell_angle_gamma 90 _cell_volume 353.870 _exptl_crystal_density_diffrn 3.003 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ca 0.00828 0.60625 0.16393 0.00500 B 0.56882 0.08946 -0.15909 0.00440 Si 0.46932 0.26637 0.08433 0.00350 O1 0.24116 0.40145 0.03713 0.00600 O2 0.67052 0.19898 -0.04243 0.00530 O3 0.67577 0.33471 0.21049 0.00500 O4 0.31490 0.08820 0.14588 0.00570 O5 0.25916 0.08658 -0.16354 0.00590 H 0.20700 0.04920 -0.09730 0.02500 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 Ca 0.00520 0.00550 0.00430 0.00040 0.00060 0.00000 B 0.00490 0.00500 0.00340 0.00010 0.00060 0.00030 Si 0.00420 0.00360 0.00250 0.00030 0.00030 -0.00020 O1 0.00630 0.00630 0.00550 0.00170 -0.00030 -0.00020 O2 0.00570 0.00620 0.00390 -0.00080 0.00080 -0.00100 O3 0.00510 0.00680 0.00310 0.00040 0.00040 -0.00110 O4 0.00610 0.00410 0.00690 0.00020 0.00220 0.00080 O5 0.00460 0.00830 0.00490 -0.00070 0.00050 0.00120