data_global _chemical_name_mineral 'Tarbuttite' loop_ _publ_author_name 'Fanfani L' 'Zanazzi P F' _journal_name_full 'Periodico di Mineralogia' _journal_volume 34 _journal_year 1965 _journal_page_first 539 _journal_page_last 545 _publ_section_title ; Dati strutturali sulla tarbuttite ; _database_code_amcsd 0014936 _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 Zn1 0.38600 0.24800 0.49200 Zn2 0.02800 0.73800 0.19000 P 0.83800 0.24900 0.27300 O1 0.77300 0.99100 0.14900 O2 0.93700 0.38600 0.12900 O3 0.60200 0.38200 0.33300 O4 0.97300 0.72600 0.50800 O-H 0.36600 0.88500 0.29800