data_global _chemical_name_mineral 'Magnesio-arfvedsonite' loop_ _publ_author_name 'Oberti R' 'Boiocchi M' 'Hawthorne F C' 'Ball N A' 'Harlow G E' _journal_name_full 'Mineralogical Magazine' _journal_volume 79 _journal_year 2015 _journal_page_first 253 _journal_page_last 260 _publ_section_title ; Magnesio-arfvedsonite from Jade mine tract, Myanmar: mineral description and crystal chemistry ; _database_code_amcsd 0020742 _chemical_compound_source 'Jade mine tract, Myanmar' _chemical_formula_sum 'Na2.53 K.04 Mg4.26 Fe.62 Al.12 Ti.03 Ca.4 Mn.01 Si7.99 O24 F.02 H1.98' _cell_length_a 9.8666 _cell_length_b 17.9283 _cell_length_c 5.2839 _cell_angle_alpha 90 _cell_angle_beta 103.799 _cell_angle_gamma 90 _cell_volume 907.700 _exptl_crystal_density_diffrn 3.035 _symmetry_space_group_name_H-M 'C 1 2/m 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,z' '1/2+x,1/2-y,z' '-x,y,-z' '1/2-x,1/2+y,-z' '-x,-y,-z' '1/2-x,1/2-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 Na1 0.00000 0.50000 0.00000 0.24000 0.02500 K1 0.00000 0.50000 0.00000 0.04000 0.02500 Na2 0.02690 0.50000 0.07890 0.12100 0.03580 Na3 0.00000 0.47220 0.00000 0.23900 0.02960 Mg1 0.00000 0.08931 0.50000 0.97500 0.00920 Fe1 0.00000 0.08931 0.50000 0.02500 0.00920 Mg2 0.00000 0.18136 0.00000 0.67500 0.01010 Fe2 0.00000 0.18136 0.00000 0.25500 0.01010 Al2 0.00000 0.18136 0.00000 0.05500 0.01010 Ti2 0.00000 0.18136 0.00000 0.01500 0.01010 Mg3 0.00000 0.00000 0.00000 0.96000 0.00860 Fe3 0.00000 0.00000 0.00000 0.04000 0.00860 Na4 0.00000 0.27565 0.50000 0.78500 0.01760 Ca4 0.00000 0.27565 0.50000 0.20000 0.01760 Fe4 0.00000 0.27565 0.50000 0.01000 0.01760 Mn4 0.00000 0.27565 0.50000 0.00500 0.01760 Si1 0.27914 0.08555 0.29283 1.00000 0.00770 Si2 0.28644 0.17171 0.79961 0.99750 0.00830 Al2 0.28644 0.17171 0.79961 0.00250 0.00830 O1 0.11205 0.08691 0.21497 1.00000 0.00940 O2 0.11851 0.16938 0.73005 1.00000 0.01050 O3 0.10746 0.00000 0.71104 0.99000 0.01110 F3 0.10746 0.00000 0.71104 0.01000 0.01110 O4 0.36231 0.24944 0.79553 1.00000 0.01310 O5 0.34806 0.12899 0.08433 1.00000 0.01240 O6 0.34186 0.11724 0.58627 1.00000 0.01270 O7 0.33811 0.00000 0.28808 1.00000 0.01260 H 0.19000 0.00000 0.74300 0.99000 0.01000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Na1 0.02030 0.02870 0.03080 0.00000 0.01550 0.00000 K1 0.02030 0.02870 0.03080 0.00000 0.01550 0.00000 Na2 0.02620 0.05360 0.02680 0.00000 0.00480 0.00000 Na3 0.02930 0.01140 0.05920 0.00000 0.03220 0.00000 Mg1 0.00930 0.01010 0.00850 0.00000 0.00260 0.00000 Fe1 0.00930 0.01010 0.00850 0.00000 0.00260 0.00000 Mg2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000 Fe2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000 Al2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000 Ti2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000 Mg3 0.00900 0.00910 0.00770 0.00000 0.00190 0.00000 Fe3 0.00900 0.00910 0.00770 0.00000 0.00190 0.00000 Na4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000 Ca4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000 Fe4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000 Mn4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000 Si1 0.00740 0.00810 0.00730 -0.00030 0.00150 -0.00050 Si2 0.00770 0.00930 0.00790 -0.00120 0.00180 -0.00040 Al2 0.00770 0.00930 0.00790 -0.00120 0.00180 -0.00040 O1 0.00770 0.01110 0.00910 -0.00090 0.00160 -0.00130 O2 0.00930 0.01120 0.01050 -0.00100 0.00130 -0.00110 O3 0.00980 0.01170 0.01140 0.00000 0.00160 0.00000 F3 0.00980 0.01170 0.01140 0.00000 0.00160 0.00000 O4 0.01610 0.01120 0.01210 -0.00470 0.00390 -0.00010 O5 0.00910 0.01660 0.01140 0.00010 0.00230 0.00440 O6 0.01070 0.01660 0.01020 0.00030 0.00110 -0.00370 O7 0.01080 0.00880 0.01820 0.00000 0.00320 0.00000