#------------------------------------------------------------------------------ #$Date: 2016-02-16 14:49:47 +0200 (Tue, 16 Feb 2016) $ #$Revision: 176465 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/07/9000715.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_9000715 loop_ _publ_author_name 'Winter, J. K.' 'Ghose, S.' _publ_section_title ; Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs T = 25 deg C ; _journal_name_full 'American Mineralogist' _journal_page_first 573 _journal_page_last 586 _journal_volume 64 _journal_year 1979 _chemical_formula_sum 'Al2 O5 Si' _chemical_name_mineral Andalusite _space_group_IT_number 58 _symmetry_space_group_name_Hall '-P 2 2n' _symmetry_space_group_name_H-M 'P n n m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 7.7980 _cell_length_b 7.9031 _cell_length_c 5.5566 _cell_volume 342.444 _diffrn_ambient_temperature 298.15 _exptl_crystal_density_diffrn 3.143 _cod_original_formula_sum 'Al2 Si O5' _cod_database_code 9000715 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2-y,1/2+z 1/2-x,1/2+y,1/2-z 1/2-x,1/2+y,1/2+z 1/2+x,1/2-y,1/2-z x,y,-z -x,-y,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 Al1 0.00647 0.00918 0.00360 0.00156 0.00000 0.00000 Al2 0.00277 0.00823 0.00438 0.00000 0.00000 0.00000 Si 0.00216 0.00759 0.00391 0.00000 0.00000 0.00000 Oa 0.00339 0.00981 0.00485 -0.00187 0.00000 0.00000 Ob 0.00308 0.00854 0.01345 0.00062 0.00000 0.00000 Oc 0.00555 0.00886 0.00469 -0.00094 0.00000 0.00000 Od 0.00493 0.01013 0.00469 -0.00125 -0.00088 0.00111 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Al1 0.00000 0.00000 0.24190 Al2 0.37050 0.13910 0.50000 Si 0.24600 0.25200 0.00000 Oa 0.42460 0.36290 0.00000 Ob 0.10300 0.40030 0.00000 Oc 0.42330 0.36290 0.50000 Od 0.23050 0.13390 0.23940