data_global _chemical_name_mineral 'Paulkellerite' loop_ _publ_author_name 'Grice J D' 'Groat L A' _journal_name_full 'American Mineralogist' _journal_volume 73 _journal_year 1988 _journal_page_first 873 _journal_page_last 875 _publ_section_title ; Crystal structure of paulkellerite ; _database_code_amcsd 0001191 _chemical_formula_sum 'Bi2 Fe P O8 H2' _cell_length_a 11.380 _cell_length_b 6.660 _cell_length_c 9.653 _cell_angle_alpha 90 _cell_angle_beta 115.34 _cell_angle_gamma 90 _cell_volume 661.216 _exptl_crystal_density_diffrn 6.377 _symmetry_space_group_name_H-M 'C 1 2/c 1' 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' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Bi 0.23390 0.03767 0.08772 Fe 0.50000 0.00000 0.50000 P 0.00000 0.17190 0.25000 O1 0.10460 0.04160 0.23860 O2 0.43460 0.19290 0.60780 O3 0.35120 0.17260 0.98200 O-H 0.38060 0.14100 0.30150 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 Bi 0.01090 0.00700 0.01180 0.00020 0.00350 -0.00020 Fe 0.00950 0.00700 0.01150 -0.00060 0.00360 -0.00100 P 0.01100 0.00400 0.01200 0.00000 0.00500 0.00000 O1 0.02600 0.00900 0.01700 0.00100 0.01500 0.00300 O2 0.01100 0.00900 0.01700 0.00000 0.00300 -0.00500 O3 0.01700 0.01100 0.01300 0.00400 0.00800 0.00500 O-H 0.01200 0.01300 0.01600 -0.00400 0.00000 0.00000