data_global _chemical_name_mineral 'Flinkite' loop_ _publ_author_name 'Moore P B' _journal_name_full 'American Mineralogist' _journal_volume 52 _journal_year 1967 _journal_page_first 1603 _journal_page_last 1613 _publ_section_title ; Crystal chemistry of the basic manganese arsenate minerals 1. The crystal structures of flinkite, Mn2Mn(OH)4(AsO4) and retzian, Mn2Y(OH)4(AsO4) ; _database_code_amcsd 160 _chemical_formula_sum 'Mn3 As (O8 H4)' _cell_length_a 9.55 _cell_length_b 13.11 _cell_length_c 5.25 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 657.303 _exptl_crystal_density_diffrn 3.757 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-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 Mn1 0.0 0.0 0.0 0.01596 Mn2 0.0205 0.1319 0.4875 0.01786 As 0.1542 0.75 0.0257 0.00595 O-H1 0.1398 0.0756 0.1617 0.01659 O2 -0.0916 0.1474 0.8361 0.01216 O-H3 -0.0994 0.0059 0.2974 0.01343 O4 0.0988 0.75 0.7067 0.01267 O5 0.1705 0.25 0.5438 0.01241