data_global _chemical_name_mineral 'Kummerite' loop_ _publ_author_name 'Grey I E' 'Keck E' 'Mumme W G' 'Pring A' 'Macrae C M' 'Glenn A M' 'Davidson C J' 'Shanks F L' 'Mills S J' _journal_name_full 'Mineralogical Magazine' _journal_volume 80 _journal_year 2016 _journal_page_first 1243 _journal_page_last 1254 _publ_section_title ; Kummerite, Mn2+Fe3+Al(PO4)2(OH)2*8H2O, a new laueite-group mineral from the Hagendorf Sud pegmatite, Bavaria, with ordering of Al and Fe3+ ; _database_code_amcsd 0020869 _chemical_compound_source 'Hagendorf Sud pegmatite, Bavaria' _chemical_formula_sum 'Mn.37 Mg.27 Fe1.368 Zn.03 Al.982 P2 O18 H18' _cell_length_a 5.3160 _cell_length_b 10.620 _cell_length_c 7.1180 _cell_angle_alpha 107.33 _cell_angle_beta 111.33 _cell_angle_gamma 72.22 _cell_volume 348.453 _exptl_crystal_density_diffrn 2.382 _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_occupancy _atom_site_U_iso_or_equiv Mn1 0.00000 0.00000 0.00000 0.37000 0.01500 Mg1 0.00000 0.00000 0.00000 0.27000 0.01500 Fe1 0.00000 0.00000 0.00000 0.35000 0.01500 Zn1 0.00000 0.00000 0.00000 0.03000 0.01500 Fe2 0.00000 0.50000 0.00000 0.59400 0.01200 Al2 0.00000 0.50000 0.00000 0.40600 0.01200 Fe3 0.00000 0.50000 0.50000 0.42400 0.01300 Al3 0.00000 0.50000 0.50000 0.57600 0.01300 P 0.34450 0.66880 0.92560 1.00000 0.01300 O1 0.16630 0.65300 0.04300 1.00000 0.01700 O2 0.29890 0.57520 0.70960 1.00000 0.01700 O3 0.27010 0.81680 0.90460 1.00000 0.01800 O4 0.34380 0.36840 0.95230 1.00000 0.01600 O5 0.15020 0.50410 0.29650 1.00000 0.01700 O6 0.23290 0.31270 0.54310 1.00000 0.01900 O7 0.24120 0.00690 0.32070 1.00000 0.02500 O8 0.22680 0.10990 0.94420 1.00000 0.02500 O9 0.26790 0.80260 0.50790 1.00000 0.02200 H5 0.33500 0.48100 0.32200 1.00000 0.04600 H6A 0.29000 0.32700 0.68200 1.00000 0.04600 H6B 0.39000 0.28000 0.50700 1.00000 0.04600 H7A 0.24900 0.08400 0.41800 1.00000 0.04600 H7B 0.20900 -0.05000 0.37600 1.00000 0.04600 H8A 0.11800 0.19200 0.95100 1.00000 0.04600 H8B 0.40100 0.11700 0.98600 1.00000 0.04600 H9A 0.25700 0.81600 0.63600 1.00000 0.04600 H9B 0.17700 0.73800 0.42700 1.00000 0.04600