#------------------------------------------------------------------------------ #$Date: 2010-06-10 18:11:07 +0300 (Thu, 10 Jun 2010) $ #$Revision: 1210 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9008301.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_9008301 loop_ _publ_author_name 'Klaska, R.' 'Gebert, W.' _publ_section_title ; Polytypie und struktur von gebhardit - Pb8OCl6(As2O5)2 Locality: Tsumeb mine, Tsumeb, Namibia ; _journal_name_full 'Zeitschrift fur Kristallographie' _journal_page_first 75 _journal_page_last 76 _journal_volume 159 _journal_year 1982 _chemical_formula_sum 'As4 Cl6 O11 Pb8' _chemical_name_mineral Gebhardite _space_group_IT_number 14 _symmetry_space_group_name_Hall '-P 2ybc' _symmetry_space_group_name_H-M 'P 1 21/c 1' _cell_angle_alpha 90 _cell_angle_beta 85.2 _cell_angle_gamma 90 _cell_length_a 6.724 _cell_length_b 11.20 _cell_length_c 34.19 _cell_volume 2565.778 _exptl_crystal_density_diffrn 6.073 _[local]_cod_chemical_formula_sum_orig 'Pb8 Cl6 As4 O11' _cod_database_code 9008301 _amcsd_database_code AMCSD#0010521 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,1/2-y,1/2+z -x,1/2+y,1/2-z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Pb1 0.74350 0.62830 0.21930 Pb2 0.79700 0.62940 -0.01220 Pb3 0.14680 0.37500 0.19140 Pb4 0.74430 0.12360 0.21970 Pb5 0.80450 0.12340 -0.00930 Pb6 0.84270 0.37420 0.30590 Pb7 0.97940 0.89980 0.59600 Pb8 0.99010 0.15210 0.10370 Cl1 0.67840 -0.13390 0.82150 Cl2 0.36230 0.11590 0.03570 Cl3 0.49370 0.36820 0.25090 Cl4 0.33750 -0.13340 0.68170 Cl5 0.74530 -0.37630 0.89530 Cl6 0.36000 0.61640 0.03660 As1 0.75030 0.87180 0.06040 As2 0.72270 0.37290 0.05520 As3 0.69830 0.12350 0.65520 As4 0.72300 0.87590 0.15510 O1 0.79280 0.36950 0.10160 O2 0.83450 0.85450 0.11140 O3 0.10110 0.74110 0.95510 O4 0.09070 0.25440 0.45660 O5 0.87840 0.23620 0.67150 O6 0.84540 0.00000 0.66580 O7 0.87100 0.73860 0.67500 O8 0.85140 0.50020 0.66380 O9 0.86030 0.49910 0.53430 O10 0.14010 0.99750 0.46290 O11 0.74670 0.11740 0.88510