#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9009492.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_9009492 loop_ _publ_author_name 'Alietti E' 'Brigatti M F' 'Capedri S' 'Poppi L' _publ_section_title ; The roedderite-chayesite series from Spanish lamproites: crystal chemical characterization Locality: Cancarix, Albacete province, Spain ; _journal_name_full 'Mineralogical Magazine' _journal_page_first 655 _journal_page_last 662 _journal_volume 58 _journal_year 1994 _chemical_formula_sum 'Fe0.65 K0.89 Mg4.35 Na0.55 O30 Si12' _[local]_cod_chemical_formula_sum_orig '(K.89 Na.55) (Mg4.35 Fe.65) Si12 O30' _chemical_name_mineral Roedderite _symmetry_space_group_name_H-M 'P 6/m c c' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 10.124 _cell_length_b 10.124 _cell_length_c 14.305 _cell_volume 1269.763 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-x+y,1/2+z x,x-y,1/2-z -x+y,-x,-z x-y,x,z -y,-x,1/2+z y,x,1/2-z y,-x+y,-z -y,x-y,z x-y,-y,1/2+z -x+y,y,1/2-z x,y,-z -x,-y,z x,x-y,1/2+z -x,-x+y,1/2-z x-y,x,-z -x+y,-x,z y,x,1/2+z -y,-x,1/2-z -y,x-y,-z y,-x+y,z -x+y,y,1/2+z x-y,-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 KC 0.00000 0.00000 0.25000 0.89000 0.02660 NaC 0.00000 0.00000 0.25000 0.11000 0.02660 NaB 0.33333 0.66667 -0.02020 0.11000 0.02153 MgA 0.33333 0.66667 0.25000 0.87000 0.01305 Fe3+A 0.33333 0.66667 0.25000 0.13000 0.01305 MgT2 0.50000 0.50000 0.25000 0.87000 0.01393 Fe3+T2 0.50000 0.50000 0.25000 0.13000 0.01393 SiT1 0.23814 0.35274 0.39066 1.00000 0.01254 O1 0.12990 0.39450 0.00000 1.00000 0.02419 O2 0.21930 0.27760 0.13327 1.00000 0.02191 O3 0.15500 0.49660 0.17245 1.00000 0.01697 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 KC 0.02508 0.02508 0.02964 0.01254 0.00000 0.00000 NaC 0.02508 0.02508 0.02964 0.01254 0.00000 0.00000 MgA 0.01203 0.01203 0.01495 0.00608 0.00000 0.00000 Fe3+A 0.01203 0.01203 0.01495 0.00608 0.00000 0.00000 MgT2 0.00988 0.02179 0.01418 0.01089 0.00000 0.00000 Fe3+T2 0.00988 0.02179 0.01418 0.01089 0.00000 0.00000 SiT1 0.01191 0.01292 0.01381 0.00671 0.00051 0.00076 O1 0.02976 0.02444 0.01735 0.01292 0.00000 0.00000 O2 0.02115 0.02482 0.02469 0.01532 -0.00051 0.00025 O3 0.01558 0.01697 0.01836 0.00810 -0.00101 -0.00241 _cod_database_code 9009492