#------------------------------------------------------------------------------ #$Date: 2023-03-24 18:37:27 +0200 (Fri, 24 Mar 2023) $ #$Revision: 282053 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/15/9001553.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_9001553 loop_ _publ_author_name 'Artioli, G.' 'Rinaldi, R.' 'Stahl, K.' 'Zanazzi, P. F.' _publ_section_title ;Structure refinements of beryl by single-crystal neutron and X-ray diffraction Sample no. 1, morganite, probed with X-rays, T = 295 K ; _journal_name_full 'American Mineralogist' _journal_page_first 762 _journal_page_last 768 _journal_volume 78 _journal_year 1993 _chemical_formula_sum 'Al2 Be2.682 Cs0.096 H0.48 Li0.318 O18.16 Si6' _chemical_name_mineral Beryl _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 9.208 _cell_length_b 9.208 _cell_length_c 9.197 _cell_volume 675.317 _database_code_amcsd 0001604 _diffrn_ambient_temperature 295 _exptl_crystal_density_diffrn 2.718 _cod_original_formula_sum 'Si6 (Be2.682 Li.318) Al2 O18.16 Cs.096 H.48' _cod_database_code 9001553 loop_ _space_group_symop_operation_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_U_iso_or_equiv Si 0.38800 0.11650 0.00000 1.00000 0.00405 Be 0.50000 0.00000 0.25000 0.89400 0.00760 Li 0.50000 0.00000 0.25000 0.10600 0.00760 Al 0.66667 0.33333 0.25000 1.00000 0.00443 O1 0.30920 0.23640 0.00000 1.00000 0.01102 O2 0.49880 0.14590 0.14540 1.00000 0.00785 Wat 0.00000 0.00000 0.00000 0.16000 0.06206 Cs 0.00000 0.00000 0.25000 0.09600 0.09879