data_global _chemical_name_mineral 'Tarbuttite' loop_ _publ_author_name 'Cocco G' 'Fanfani L' 'Zanazzi P F' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 123 _journal_year 1966 _journal_page_first 321 _journal_page_last 329 _publ_section_title ; The crystal structure of tarbuttite, Zn2(OH)PO4 ; _database_code_amcsd 0010630 _chemical_compound_source 'Broken Hill, Rhodesia' _chemical_formula_sum 'Zn2 P O5 H' _cell_length_a 5.499 _cell_length_b 5.654 _cell_length_c 6.465 _cell_angle_alpha 102.85 _cell_angle_beta 102.77 _cell_angle_gamma 86.83 _cell_volume 191.120 _exptl_crystal_density_diffrn 4.218 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,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 Zn1 0.38660 0.24810 0.49230 0.00215 Zn2 0.02780 0.73840 0.18970 0.00063 P 0.83870 0.25000 0.27350 0.00253 O1 0.77240 0.99170 0.14820 0.00228 O2 0.93570 0.38670 0.12870 0.00152 O3 0.60340 0.38170 0.33380 0.00279 O4 0.97220 0.74580 0.50830 0.00317 O-H 0.36610 0.88500 0.29900 0.00177