data_global _chemical_name_mineral 'Hentschelite' loop_ _publ_author_name 'Sieber N H W' 'Hofmeister W' 'Tillmanns E' 'Abraham K' _journal_name_full 'Fortschritte der Mineralogie' _journal_volume 62 _journal_year 1984 _journal_page_first 231 _journal_page_last 232 _publ_section_title ; Neue mineraldaten fur kupferphosphate und -arsenate von Reichenbach/Odw ; _database_code_amcsd 0012651 _chemical_compound_source 'Reichenbach, Germany' _chemical_formula_sum 'Cu Fe2 P2 O10 H2' _cell_length_a 6.977 _cell_length_b 7.781 _cell_length_c 7.260 _cell_angle_alpha 90 _cell_angle_beta 117.68 _cell_angle_gamma 90 _cell_volume 349.025 _exptl_crystal_density_diffrn 3.798 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+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_U_iso_or_equiv Cu 0.00000 0.00000 0.00000 0.00900 Fe 0.28000 0.27388 0.01234 0.00680 P 0.50023 0.09689 0.74830 0.00470 O1 0.29310 0.98950 0.63520 0.00930 O2 0.47570 0.21500 0.90230 0.01130 O3 0.69030 0.96830 0.86250 0.00930 O4 0.55050 0.20360 0.59910 0.01030 O-H5 0.52320 0.37140 0.27120 0.00720