#------------------------------------------------------------------------------ #$Date: 2009-11-16 03:43:51 +0200 (Mon, 16 Nov 2009) $ #$Revision: 853 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9009581.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_9009581 _space_group_IT_number 203 _symmetry_space_group_name_Hall '-F 2uv 2vw 3' _symmetry_space_group_name_H-M 'F d -3 :2' _[local]_cod_cif_authors_sg_H-M 'F d 3' loop_ _publ_author_name 'Dal Negro A' 'Giuseppetti G' 'Tadini C' _publ_section_title ; Refinement of the crystal structure of northupite: Na3Mg(CO3)2Cl Locality: Searles Lake, California, USA ; _journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen' _journal_page_first 158 _journal_page_last 163 _journal_volume 22 _journal_year 1975 _chemical_formula_sum 'Na3 Mg C2 O6 Cl' _chemical_name_mineral Northupite _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 14.069 _cell_length_b 14.069 _cell_length_c 14.069 _cell_volume 2784.772 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,1/2+y,1/2+z 1/2+x,y,1/2+z 1/2+x,1/2+y,z 1/4+z,1/4+x,-y 1/4+z,3/4+x,1/2-y 3/4+z,1/4+x,1/2-y 3/4+z,3/4+x,-y 1/4+z,-x,1/4+y 1/4+z,1/2-x,3/4+y 3/4+z,-x,3/4+y 3/4+z,1/2-x,1/4+y -z,1/4+x,1/4+y -z,3/4+x,3/4+y 1/2-z,1/4+x,3/4+y 1/2-z,3/4+x,1/4+y -z,-x,-y -z,1/2-x,1/2-y 1/2-z,-x,1/2-y 1/2-z,1/2-x,-y y,3/4-z,3/4-x y,1/4-z,1/4-x 1/2+y,3/4-z,1/4-x 1/2+y,1/4-z,3/4-x 3/4-y,3/4-z,x 3/4-y,1/4-z,1/2+x 1/4-y,3/4-z,1/2+x 1/4-y,1/4-z,x 3/4-y,z,3/4-x 3/4-y,1/2+z,1/4-x 1/4-y,z,1/4-x 1/4-y,1/2+z,3/4-x y,z,x y,1/2+z,1/2+x 1/2+y,z,1/2+x 1/2+y,1/2+z,x 1/4+x,-y,1/4+z 1/4+x,1/2-y,3/4+z 3/4+x,-y,3/4+z 3/4+x,1/2-y,1/4+z -x,1/4+y,1/4+z -x,3/4+y,3/4+z 1/2-x,1/4+y,3/4+z 1/2-x,3/4+y,1/4+z 1/4+x,1/4+y,-z 1/4+x,3/4+y,1/2-z 3/4+x,1/4+y,1/2-z 3/4+x,3/4+y,-z -x,-y,-z -x,1/2-y,1/2-z 1/2-x,-y,1/2-z 1/2-x,1/2-y,-z 3/4-z,3/4-x,y 3/4-z,1/4-x,1/2+y 1/4-z,3/4-x,1/2+y 1/4-z,1/4-x,y 3/4-z,x,3/4-y 3/4-z,1/2+x,1/4-y 1/4-z,x,1/4-y 1/4-z,1/2+x,3/4-y z,3/4-x,3/4-y z,1/4-x,1/4-y 1/2+z,3/4-x,1/4-y 1/2+z,1/4-x,3/4-y z,x,y z,1/2+x,1/2+y 1/2+z,x,1/2+y 1/2+z,1/2+x,y -y,1/4+z,1/4+x -y,3/4+z,3/4+x 1/2-y,1/4+z,3/4+x 1/2-y,3/4+z,1/4+x 1/4+y,1/4+z,-x 1/4+y,3/4+z,1/2-x 3/4+y,1/4+z,1/2-x 3/4+y,3/4+z,-x 1/4+y,-z,1/4+x 1/4+y,1/2-z,3/4+x 3/4+y,-z,3/4+x 3/4+y,1/2-z,1/4+x -y,-z,-x -y,1/2-z,1/2-x 1/2-y,-z,1/2-x 1/2-y,1/2-z,-x 3/4-x,y,3/4-z 3/4-x,1/2+y,1/4-z 1/4-x,y,1/4-z 1/4-x,1/2+y,3/4-z x,3/4-y,3/4-z x,1/4-y,1/4-z 1/2+x,3/4-y,1/4-z 1/2+x,1/4-y,3/4-z 3/4-x,3/4-y,z 3/4-x,1/4-y,1/2+z 1/4-x,3/4-y,1/2+z 1/4-x,1/4-y,z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Na 0.89770 0.12500 0.12500 0.02001 Mg 0.50000 0.50000 0.50000 0.01051 C 0.28309 0.28309 0.28309 0.01013 O 0.26270 0.23011 0.35458 0.01520 Cl 0.00000 0.00000 0.00000 0.02647 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 Na 0.02026 0.02116 0.01865 0.00000 0.00000 0.00391 Mg 0.01043 0.01043 0.01043 -0.00050 -0.00050 -0.00050 C 0.01013 0.01013 0.01013 -0.00211 -0.00211 -0.00211 O 0.01865 0.01434 0.01263 -0.00100 0.00180 0.00321 Cl 0.02647 0.02647 0.02647 -0.01023 0.01023 0.01023