data_global _chemical_name_mineral 'Austinite' loop_ _publ_author_name 'Clark L A' 'Pluth J J' 'Steele I M' 'Smith J V' 'Sutton S R' _journal_name_full 'Mineralogical Magazine' _journal_volume 61 _journal_year 1997 _journal_page_first 677 _journal_page_last 683 _publ_section_title ; Crystal structure of austinite, CaZn(AsO4)OH ; _database_code_amcsd 0014530 _chemical_compound_source 'Sonora, Mexico' _chemical_formula_sum 'As Zn Ca O5 H' _cell_length_a 7.5092 _cell_length_b 9.0438 _cell_length_c 5.9343 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 403.008 _exptl_crystal_density_diffrn 4.308 _symmetry_space_group_name_H-M 'P 21 21 21' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,1/2+y,1/2-z' '1/2+x,1/2-y,-z' '1/2-x,-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv As 0.62285 0.67699 0.51670 0.00593 Zn 0.23594 0.49358 0.24316 0.00964 Ca 0.63121 0.32805 0.47712 0.00977 O1 0.44750 0.55870 0.49000 0.00105 O2 0.79140 0.56330 0.58820 0.00140 O3 0.35000 0.26780 0.23090 0.00107 O4 0.39700 0.29030 0.75850 0.00119 O5 0.10850 0.42690 0.50870 0.00880 H 0.01400 0.47300 0.51300 0.02700 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 As 0.00616 0.00612 0.00552 -0.00080 -0.00004 0.00014 Zn 0.01100 0.01160 0.00630 -0.00114 0.00099 0.00167 Ca 0.01040 0.00760 0.01140 0.00070 0.00110 0.00050 O1 0.01100 0.01080 0.00980 -0.00370 0.00030 0.00040 O2 0.01030 0.01470 0.01710 0.00260 -0.00250 0.00070 O3 0.01210 0.01160 0.00830 0.00260 0.00100 -0.00130 O4 0.01390 0.01250 0.00930 0.00260 0.00190 0.00280 O5 0.00890 0.00960 0.00780 0.00010 -0.00010 0.00110