#------------------------------------------------------------------------------ #$Date: 2008-03-10 10:25:41 +0200 (Mon, 10 Mar 2008) $ #$Revision: 255 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9003413.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_9003413 loop_ _publ_author_name 'Thompson R M' 'Downs R T' _publ_section_title ; Model pyroxenes II: Structural variation as a function of tetrahedral rotation model sodium indium px after Ohashi et al. (1990) with O3-O3-O3 angle = 171.0 and model oxygen radius = 1.338 ; _journal_name_full 'American Mineralogist' _journal_page_first 614 _journal_page_last 628 _journal_volume 89 _journal_year 2004 _chemical_formula_sum 'In Na Si2 O6' _chemical_name_mineral Pyroxene-ideal _symmetry_space_group_name_H-M 'C 1 2/c 1' _cell_angle_alpha 90 _cell_angle_beta 109.4 _cell_angle_gamma 90 _cell_length_a 9.967 _cell_length_b 9.241 _cell_length_c 5.335 _cell_volume 463.481 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,-z 1/2-x,1/2-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z In 0.00000 0.91667 0.25000 Na 0.00000 0.25000 0.25000 Si 0.30810 0.08333 0.27480 O1 0.13380 0.08333 0.16650 O2 0.36620 0.25000 0.33350 O3 0.36620 0.01130 0.04960