#------------------------------------------------------------------------------ #$Date: 2016-02-16 14:49:47 +0200 (Tue, 16 Feb 2016) $ #$Revision: 176465 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/01/9000145.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_9000145 loop_ _publ_author_name 'Gibbs, G. V.' _publ_section_title ; The polymorphism of cordierite I: The crystal structure of low cordierite ; _journal_name_full 'American Mineralogist' _journal_page_first 1068 _journal_page_last 1087 _journal_volume 51 _journal_year 1966 _chemical_formula_sum 'Al4 Ca0.03 Fe0.46 H0.96 K0.02 Li0.12 Mg1.54 Na0.1 O18.48 Si5' _chemical_name_mineral Cordierite _space_group_IT_number 66 _symmetry_space_group_name_Hall '-C 2 2c' _symmetry_space_group_name_H-M 'C c c m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 17.083 _cell_length_b 9.738 _cell_length_c 9.335 _cell_volume 1552.917 _exptl_crystal_density_diffrn 2.620 _cod_original_formula_sum 'Al4 Si5 (Mg1.54 Fe.46) O18.48 Li.12 Na.1 Ca.03 K.02 H.3' _cod_database_code 9000145 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2+y,z x,-y,1/2+z 1/2+x,1/2-y,1/2+z -x,y,1/2-z 1/2-x,1/2+y,1/2-z -x,y,1/2+z 1/2-x,1/2+y,1/2+z x,-y,1/2-z 1/2+x,1/2-y,1/2-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_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv _atom_site_attached_hydrogens Al1 Al 0.25000 0.25000 0.25000 1.00000 0.00279 . Si2 Si 0.00000 0.50000 0.25000 0.92000 0.00253 . Al2 Al 0.00000 0.50000 0.25000 0.08000 0.00253 . Si3 Si 0.19230 0.07810 0.00000 1.00000 0.00329 . Si4 Si 0.13510 -0.23720 0.00000 1.00000 0.00291 . Al5 Al 0.05060 0.30840 0.00000 0.96000 0.00317 . Si5 Si 0.05060 0.30840 0.00000 0.04000 0.00317 . Mg Mg 0.33740 0.00000 0.25000 0.77000 0.00291 . Fe Fe 0.33740 0.00000 0.25000 0.23000 0.00291 . O1 O 0.24660 -0.10400 0.35910 1.00000 0.00342 . O2 O 0.06160 -0.41670 0.34940 1.00000 0.00304 . O3 O -0.17300 -0.30910 0.35830 1.00000 0.00393 . O4 O 0.04340 -0.24530 0.00000 1.00000 0.00317 . O5 O 0.12240 0.18480 0.00000 1.00000 0.00823 . O6 O 0.16390 -0.07880 0.00000 1.00000 0.00684 . Wat O 0.00000 0.00000 0.25000 0.48000 0.09030 2 Li Li 0.00000 0.00000 0.25000 0.12000 0.09030 . Na Na 0.00000 0.00000 0.25000 0.10000 0.09030 . Ca Ca 0.00000 0.00000 0.25000 0.03000 0.09030 . K K 0.00000 0.00000 0.25000 0.02000 0.09030 .