data_global _chemical_name_mineral 'Ferrowyllieite' loop_ _publ_author_name 'Moore P B' 'Molin-Case J' _journal_name_full 'American Mineralogist' _journal_volume 59 _journal_year 1974 _journal_page_first 280 _journal_page_last 290 _publ_section_title ; Contribution to pegmatite phosphate giant crystal paragenesis: II. The crystal chemistry of wyllieite, Na2Fe2Al[PO4]3, a primary phase ; _database_code_amcsd 0000397 _chemical_compound_source 'Victory mine pegmatite, near Custer, South Dakota, USA' _chemical_formula_sum 'Na2.31 Ca.5 Mn.5 Fe4 Mg.5 Al1.5 P6 O24' _cell_length_a 11.868 _cell_length_b 12.382 _cell_length_c 6.354 _cell_angle_alpha 90 _cell_angle_beta 114.52 _cell_angle_gamma 90 _cell_volume 849.512 _exptl_crystal_density_diffrn 3.700 _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_occupancy _atom_site_U_iso_or_equiv Na1a 0.50000 0.00000 0.00000 0.91000 0.01520 Ca1b 0.49030 0.00130 0.50450 0.25000 0.00203 Mn1b 0.49030 0.00130 0.50450 0.25000 0.00203 Na2 -0.00040 -0.02180 0.24850 0.70000 0.01520 Fe1 -0.00050 0.26380 0.23660 0.75000 0.00988 Mg1 -0.00050 0.26380 0.23660 0.25000 0.00988 Fe2a 0.27260 -0.35160 0.36260 1.00000 0.01381 Al2b 0.21870 -0.16640 0.64340 0.75000 0.00760 Fe2b 0.21870 -0.16640 0.64340 0.25000 0.00760 P1 -0.00720 -0.28540 0.25920 1.00000 0.00823 P2a 0.23810 -0.11430 0.14570 1.00000 0.00925 P2b 0.23760 0.09710 0.61750 1.00000 0.01026 O1a 0.45310 -0.28890 0.55090 1.00000 0.01355 O1b 0.44980 -0.71700 0.01670 1.00000 0.01241 O2a 0.08200 -0.37370 0.24290 1.00000 0.01608 O2b 0.11040 -0.64900 0.71990 1.00000 0.01811 O3a 0.34320 -0.34700 0.11140 1.00000 0.01646 O3b 0.31890 -0.67330 0.58660 1.00000 0.01659 O4a 0.12190 0.40200 0.28070 1.00000 0.01393 O4b 0.12880 -0.41480 0.85360 1.00000 0.01722 O5a 0.22160 -0.18400 0.32880 1.00000 0.01520 O5b 0.23800 -0.83360 0.81770 1.00000 0.01659 O6a 0.33100 -0.50830 0.38370 1.00000 0.01950 O6b 0.32260 -0.51270 0.88390 1.00000 0.02077