#------------------------------------------------------------------------------ #$Date: 2012-02-28 17:44:07 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35913 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/94/9009496.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9009496 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 'Fe0.75 K0.8 Mg4.25 Na0.64 O30 Si12' _chemical_name_mineral Roedderite _space_group_IT_number 192 _symmetry_space_group_name_Hall '-P 6 2c' _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 10.126 _cell_length_b 10.126 _cell_length_c 14.326 _cell_volume 1272.130 _exptl_crystal_density_diffrn 2.632 _[local]_cod_chemical_formula_sum_orig 'K.8 Na.64 (Mg4.25 Fe.75) Si12 O30' _cod_database_code 9009496 _amcsd_database_code AMCSD#0012112 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_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 0.01950 0.01950 0.02229 0.00975 0.00000 0.00000 NaC 0.01950 0.01950 0.02229 0.00975 0.00000 0.00000 MgA 0.00899 0.00899 0.01076 0.00456 0.00000 0.00000 Fe3+A 0.00899 0.00899 0.01076 0.00456 0.00000 0.00000 MgT2 0.00747 0.01988 0.00912 0.00988 0.00000 0.00000 Fe3+T2 0.00747 0.01988 0.00912 0.00988 0.00000 0.00000 SiT1 0.01000 0.01102 0.00912 0.00582 0.00063 0.00088 O1 0.02710 0.02191 0.01203 0.01216 0.00000 0.00000 O2 0.01824 0.02204 0.02051 0.01393 -0.00013 0.00025 O3 0.01317 0.01355 0.01381 0.00671 -0.00127 -0.00291 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 0.80000 0.02039 NaC 0.00000 0.00000 0.25000 0.20000 0.02039 NaB 0.33333 0.66667 -0.01900 0.11000 0.01900 MgA 0.33333 0.66667 0.25000 0.85000 0.00963 Fe3+A 0.33333 0.66667 0.25000 0.15000 0.00963 MgT2 0.50000 0.50000 0.25000 0.85000 0.01077 Fe3+T2 0.50000 0.50000 0.25000 0.15000 0.01077 SiT1 0.23814 0.35284 0.39067 1.00000 0.00975 O1 0.12990 0.39430 0.00000 1.00000 0.02039 O2 0.21970 0.27780 0.13331 1.00000 0.01849 O3 0.15510 0.49670 0.17248 1.00000 0.01355