#------------------------------------------------------------------------------ #$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9009496.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_9009496 _chemical_name 'Roedderite' loop_ _publ_author_name 'Alietti E' 'Brigatti M F' 'Capedri S' 'Poppi L' _journal_name_full "Mineralogical Magazine" _journal_volume 58 _journal_year 1994 _journal_page_first 655 _journal_page_last 662 _publ_section_title ; The roedderite-chayesite series from Spanish lamproites: crystal chemical characterization Locality: Cancarix, Albacete province, Spain ; _chemical_formula_sum 'K.8 Na.64 (Mg4.25 Fe.75) Si12 O30' _cell_length_a 10.126 _cell_length_b 10.126 _cell_length_c 14.326 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1272.130 _symmetry_space_group_name_H-M 'P 6/m c c' 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_Uiso_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