#------------------------------------------------------------------------------ #$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $ #$Revision: 966 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9008438.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_9008438 loop_ _publ_author_name 'Hejny C' 'Armbruster T' _publ_section_title ; Polytypism in xonotlite Ca6Si6O17(OH)2 Note: polytype derived from structure in Kudoh and Takeuchi (1979) Locality: model structure, not experimentally determined ; _journal_name_full 'Zeitschrift fur Kristallographie' _journal_page_first 396 _journal_page_last 408 _journal_volume 216 _journal_year 2001 _chemical_formula_sum 'Ca6 O19 Si6' _[local]_cod_chemical_formula_sum_orig 'Ca6 Si6 O19' _chemical_name_mineral Xonotlite _symmetry_space_group_name_H-M 'P -1' _cell_angle_alpha 89.99 _cell_angle_beta 90.36 _cell_angle_gamma 102.18 _cell_length_a 8.712 _cell_length_b 7.363 _cell_length_c 7.012 _cell_volume 439.661 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ca1 0.50000 0.50000 0.50000 Ca2 0.50000 0.00000 0.50000 Ca3 0.13350 0.16450 0.33680 Ca4 0.13850 0.65370 0.34140 Si1 0.21180 0.21700 0.76820 Si2 0.21180 0.63890 0.76860 Si3 0.31820 0.95470 0.05620 O1 0.50000 0.00000 0.00000 O2 0.21900 0.43030 0.84220 O3 0.35120 0.71790 0.61920 O4 0.34340 0.20590 0.61740 O5 0.22970 0.11160 0.97200 O6 0.22940 0.75380 0.97160 O7 0.04240 0.63820 0.66520 O8 0.04630 0.13390 0.67400 O9 0.29880 0.95060 0.27800 O10 0.29770 0.44810 0.26940 _cod_database_code 9008438