#------------------------------------------------------------------------------ #$Date: 2010-06-10 18:11:07 +0300 (Thu, 10 Jun 2010) $ #$Revision: 1210 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9002409.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_9002409 loop_ _publ_author_name 'Geiger, C. A.' 'Armbruster, T.' 'Khomenko, V.' 'Quartieri, S.' _publ_section_title ; Cordierite I: The coordination of Fe2+ Sample: 42/IA ; _journal_name_full 'American Mineralogist' _journal_page_first 1255 _journal_page_last 1264 _journal_volume 85 _journal_year 2000 _chemical_formula_sum 'Al4 Fe0.164 Mg1.836 Na0.07 O18.59 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_length_a 17.069 _cell_length_b 9.725 _cell_length_c 9.347 _cell_volume 1551.565 _exptl_crystal_density_diffrn 2.574 _[local]_cod_chemical_formula_sum_orig 'Si5 Al4 (Mg1.836 Fe.164) Na.07 O18.59' _cod_database_code 9002409 _amcsd_database_code AMCSD#0002493 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_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 Si21 0.00472 0.00409 0.00520 -0.00028 0.00000 0.00000 Si16 0.00470 0.00630 0.00470 0.00000 0.00000 0.00000 Si23 0.00417 0.00500 0.00540 -0.00073 0.00000 0.00000 Al26 0.00420 0.00550 0.00530 -0.00066 0.00000 0.00000 Al11 0.00690 0.00530 0.00570 -0.00143 0.00000 0.00000 MgM 0.00550 0.00610 0.00790 0.00000 0.00000 0.00004 FeM 0.00550 0.00610 0.00790 0.00000 0.00000 0.00004 NaCH0 0.02378 0.02869 0.04720 0.00059 0.00000 0.00000 O16 0.00670 0.00980 0.00740 -0.00130 0.00010 0.00360 O11 0.01030 0.00720 0.00720 -0.00070 0.00330 -0.00090 O13 0.00840 0.00930 0.00760 -0.00140 0.00170 -0.00230 O21 0.00970 0.01020 0.01530 -0.00560 0.00000 0.00000 O26 0.00500 0.01590 0.01580 -0.00200 0.00000 0.00000 O23 0.01320 0.00490 0.01610 0.00290 0.00000 0.00000 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Si21 0.30750 0.07774 0.00000 1.00000 Si16 0.00000 0.00000 0.25000 1.00000 Si23 0.36487 0.23734 0.50000 1.00000 Al26 0.05089 0.19218 0.00000 1.00000 Al11 0.25000 0.25000 0.25025 1.00000 MgM 0.16262 0.00000 0.25000 0.91800 FeM 0.16262 0.00000 0.25000 0.08200 NaCH0 0.50000 0.00000 0.50000 0.07000 OCH1 0.50000 0.00000 0.25000 0.31000 OCH2 0.44600 0.00000 0.25000 0.14000 O16 0.06224 0.08396 0.15096 1.00000 O11 0.25279 0.10285 0.14133 1.00000 O13 0.32678 0.31029 0.64167 1.00000 O21 0.37769 0.18440 0.00000 1.00000 O26 0.45701 0.24750 0.50000 1.00000 O23 0.33551 -0.07960 0.00000 1.00000