data_global _chemical_name_mineral 'Apatite-(CaOH)' loop_ _publ_author_name 'Sudarsanan K' 'Young R A' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 25 _journal_year 1969 _journal_page_first 1534 _journal_page_last 1543 _publ_section_title ; Significant precision in crystal structural details: Holly Springs hydroxyapatite Sample: Neutron ; _database_code_amcsd 0009360 _chemical_compound_source 'Holly Springs, Cherokee County, Georgia, USA' _chemical_formula_sum 'Ca5 P3 O13 H' _cell_length_a 9.424 _cell_length_b 9.424 _cell_length_c 6.879 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 529.086 _exptl_crystal_density_diffrn 3.153 _symmetry_space_group_name_H-M 'P 63/m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' 'y,-x+y,-z' '-y,x-y,z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x-y,x,-z' '-x+y,-x,z' '-y,x-y,1/2-z' 'y,-x+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_occupancy CaI 0.33333 0.66667 0.00130 1.00000 CaII 0.24650 0.99310 0.25000 1.00000 P 0.39830 0.36830 0.25000 1.00000 OI 0.32820 0.48460 0.25000 1.00000 OII 0.58760 0.46520 0.25000 1.00000 OIII 0.34330 0.25790 0.07040 1.00000 O-h 0.00000 0.00000 0.19780 0.50000 H 0.00000 0.00000 0.06080 0.50000 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 CaI 0.01114 0.01114 0.00575 0.00557 0.00000 0.00000 CaII 0.00810 0.00844 0.00719 0.00405 0.00000 0.00000 P 0.00607 0.00675 0.00623 0.00304 0.00000 0.00000 OI 0.01181 0.00945 0.01055 0.00810 0.00000 0.00000 OII 0.00675 0.00810 0.02134 0.00304 0.00000 0.00000 OIII 0.02835 0.01316 0.01055 0.01451 -0.00967 -0.00597 O-h 0.00844 0.00844 0.02421 0.00422 0.00000 0.00000 H 0.04353 0.04353 0.02493 0.02177 0.00000 0.00000