data_global _chemical_name_mineral 'Strengite' loop_ _publ_author_name 'Taxer K' 'Bartl H' _journal_name_full 'Crystal Research and Technology' _journal_volume 39 _journal_year 2004 _journal_page_first 1080 _journal_page_last 1088 _publ_section_title ; On the dimorphy between the variscite and clinovariscite group: refined finestructural relationship of strengite and clinostrengite, Fe(PO4)*2H2O Note: x(O3) corrected to match reported bond lengths ; _database_code_amcsd 0012324 _chemical_compound_source 'Kreuzberg, Pleystein, Barvaria' _chemical_formula_sum 'Fe P O6 H4' _cell_length_a 8.722 _cell_length_b 9.878 _cell_length_c 10.1187 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 871.786 _exptl_crystal_density_diffrn 2.847 _symmetry_space_group_name_H-M 'P b c a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '1/2+x,y,1/2-z' '1/2-x,-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 Fe 0.15163 0.32927 0.13285 0.00600 P 0.03169 0.64545 0.14834 0.00520 O1 0.00690 0.20510 0.21550 0.00990 O2 0.01580 0.49080 0.14880 0.00880 O3 0.30200 0.17970 0.11090 0.01050 O4 0.08090 0.29380 -0.04700 0.01070 O5 0.26520 0.88910 0.31260 0.01160 O6 0.33470 0.44700 0.06000 0.01470 H1 0.16900 0.90700 0.32000 0.04000 H2 0.35700 0.43300 -0.02200 0.04000 H3 0.28500 0.82800 0.37000 0.02000 H4 0.31200 0.53200 0.06200 0.04000