data_global _chemical_name_mineral 'Yurmarinite' loop_ _publ_author_name 'Pekov I V' 'Zubkova N V' 'Yapaskurt V O' 'Belakovskiy D I' 'Lykova I S' 'Vigasina M F' 'Sidorov E G' 'Pushcharovsky D Y' _journal_name_full 'Mineralogical Magazine' _journal_volume 78 _journal_year 2014 _journal_page_first 905 _journal_page_last 917 _publ_section_title ; New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. I. Yurmarinite, Na7(Fe3+,Mg,Cu)4(AsO4)6 ; _database_code_amcsd 0020582 _chemical_compound_source 'Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia' _chemical_formula_sum 'Na6.55 Ca.28 K.22 Fe2.48 Mg.7 Cu.48 Al.23 Zn.14 Ti.01 Mn.01 As5.94 P.02 V.01 O24' _cell_length_a 13.7444 _cell_length_b 13.7444 _cell_length_c 18.3077 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 2995.132 _exptl_crystal_density_diffrn 4.002 _symmetry_space_group_name_H-M 'R -3 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '2/3+x,1/3+y,1/3+z' '1/3+x,2/3+y,2/3+z' 'x,x-y,1/2+z' '2/3+x,1/3+x-y,5/6+z' '1/3+x,2/3+x-y,1/6+z' 'y,x,1/2-z' '2/3+y,1/3+x,5/6-z' '1/3+y,2/3+x,1/6-z' '-x+y,y,1/2+z' '2/3-x+y,1/3+y,5/6+z' '1/3-x+y,2/3+y,1/6+z' '-x,-x+y,1/2-z' '2/3-x,1/3-x+y,5/6-z' '1/3-x,2/3-x+y,1/6-z' '-y,-x,1/2+z' '2/3-y,1/3-x,5/6+z' '1/3-y,2/3-x,1/6+z' 'x-y,-y,1/2-z' '2/3+x-y,1/3-y,5/6-z' '1/3+x-y,2/3-y,1/6-z' 'y,-x+y,-z' '2/3+y,1/3-x+y,1/3-z' '1/3+y,2/3-x+y,2/3-z' '-x+y,-x,z' '2/3-x+y,1/3-x,1/3+z' '1/3-x+y,2/3-x,2/3+z' '-x,-y,-z' '2/3-x,1/3-y,1/3-z' '1/3-x,2/3-y,2/3-z' '-y,x-y,z' '2/3-y,1/3+x-y,1/3+z' '1/3-y,2/3+x-y,2/3+z' 'x-y,x,-z' '2/3+x-y,1/3+x,1/3-z' '1/3+x-y,2/3+x,2/3-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 Na1 0.00000 0.00000 0.00000 0.93570 0.00770 Ca1 0.00000 0.00000 0.00000 0.04000 0.00770 K1 0.00000 0.00000 0.00000 0.03140 0.00770 Na2 0.78711 0.01548 0.05276 0.93570 0.02630 Ca2 0.78711 0.01548 0.05276 0.04000 0.02630 K2 0.78711 0.01548 0.05276 0.03140 0.02630 Fe1 0.00000 0.00000 0.25000 0.62000 0.00800 Mg1 0.00000 0.00000 0.25000 0.17500 0.00800 Cu1 0.00000 0.00000 0.25000 0.12000 0.00800 Al1 0.00000 0.00000 0.25000 0.05750 0.00800 Zn1 0.00000 0.00000 0.25000 0.03500 0.00800 Ti1 0.00000 0.00000 0.25000 0.00250 0.00800 Mn1 0.00000 0.00000 0.25000 0.00250 0.00800 Fe2 0.77801 0.00000 0.25000 0.62000 0.00892 Mg2 0.77801 0.00000 0.25000 0.17500 0.00892 Cu2 0.77801 0.00000 0.25000 0.12000 0.00892 Al2 0.77801 0.00000 0.25000 0.05750 0.00892 Zn2 0.77801 0.00000 0.25000 0.03500 0.00892 Ti2 0.77801 0.00000 0.25000 0.00250 0.00892 Mn2 0.77801 0.00000 0.25000 0.00250 0.00892 As 0.18108 -0.01128 0.14596 0.99000 0.00890 P 0.18108 -0.01128 0.14596 0.00330 0.00890 V 0.18108 -0.01128 0.14596 0.00170 0.00890 O1 0.52485 0.06215 0.15330 1.00000 0.01640 O2 0.71532 0.06116 0.17686 1.00000 0.01580 O3 0.59857 0.19631 0.02568 1.00000 0.01220 O4 0.01471 0.15464 0.06052 1.00000 0.02060