data_global _chemical_name_mineral 'Whitlockite' loop_ _publ_author_name 'Kostiner E' 'Rea J R' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 32 _journal_year 1976 _journal_page_first 250 _journal_page_last 253 _publ_section_title ; The crystal structure of manganese-whitlockite, Ca18Mn2H2(PO4)14 ; _database_code_amcsd 0009550 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Mn Ca9 P7 O28 H' _cell_length_a 10.438 _cell_length_b 10.438 _cell_length_c 37.150 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 3505.291 _exptl_crystal_density_diffrn 3.074 _symmetry_space_group_name_H-M 'R 3 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'x,x-y,1/2+z' '2/3+x,1/3+x-y,5/6+z' '1/3+x,2/3+x-y,1/6+z' '-y,-x,1/2+z' '2/3-y,1/3-x,5/6+z' '1/3-y,2/3-x,1/6+z' '-x+y,y,1/2+z' '2/3-x+y,1/3+y,5/6+z' '1/3-x+y,2/3+y,1/6+z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Mn 0.00000 0.00000 0.00000 Ca1 0.29540 0.15850 0.67216 Ca2 0.28130 0.14640 0.56572 Ca3 0.38740 0.17980 0.76784 P1 0.00000 0.00000 0.75426 P2 0.31660 0.14310 0.86498 P3 0.35240 0.15900 0.96737 O1 0.27980 0.09550 0.82590 O2 0.24490 0.23180 0.87830 O3 0.27080 0.00060 0.88680 O4 0.48680 0.24150 0.87110 O5 0.40170 0.19530 0.00750 O6 0.40200 0.05120 0.95420 O7 0.41740 0.30630 0.94730 O8 0.18170 0.08020 0.96290 O-H9 0.00000 0.00000 0.79720 O10 -0.01820 0.13030 0.74250 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 Mn 0.00861 0.00861 0.00909 0.00431 0.00000 0.00000 Ca1 0.03606 0.01884 0.01748 0.02086 -0.01225 -0.00851 Ca2 0.00948 0.00960 0.00979 0.00505 -0.00034 -0.00068 Ca3 0.01151 0.00873 0.00979 0.00530 -0.00221 -0.00085 P1 0.01089 0.01089 0.02657 0.00542 0.00000 0.00000 P2 0.00861 0.00770 0.00979 0.00480 0.00017 0.00034 P3 0.00745 0.00861 0.00839 0.00339 0.00034 0.00068 O1 0.02049 0.01834 0.01119 0.01151 0.00153 0.00170 O2 0.01772 0.01710 0.01678 0.01304 0.00238 0.00051 O3 0.01188 0.00861 0.00979 0.00455 0.00238 0.00340 O4 0.00923 0.00720 0.01888 0.00327 0.00272 0.00034 O5 0.02037 0.01329 0.00979 0.00873 -0.00544 -0.00136 O6 0.01441 0.01631 0.01259 0.01064 -0.00085 -0.00034 O7 0.01668 0.01126 0.01049 0.00352 0.00289 0.00340 O8 0.00807 0.01047 0.01468 0.00377 -0.00051 -0.00187 O-H9 0.03568 0.03568 0.02307 0.01784 0.00000 0.00000 O10 0.01697 0.01022 0.02797 0.00936 0.00783 0.00493