#------------------------------------------------------------------------------ #$Date: 2008-03-10 09:25:41 +0100 (Mon, 10 Mar 2008) $ #$Revision: 255 $ #$URL: svn://www.crystallography.net/cod/cif/9/9010009.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_9010009 loop_ _publ_author_name 'Milton C' 'Appleman D E' 'Appleman M H' 'Chao E C T' 'Cuttita F' 'Dinnin J I' 'Dwornik E J' 'Ingram B L' 'Rose H J' _publ_section_title ; Merumite, a complex assemblage of chromium minerals from Guyana Locality: Guyana ; _journal_name_full 'U.S. Geological Survey Professional Paper' _journal_page_first 1 _journal_page_last 29 _journal_volume 887 _journal_year 1976 _chemical_formula_sum 'Cr O2 H' _chemical_name_mineral Bracewellite _symmetry_space_group_name_H-M 'P b n m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 4.492 _cell_length_b 9.860 _cell_length_c 2.974 _cell_volume 131.722 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,y,1/2-z -x,-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,z 1/2+x,1/2-y,-z -x,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cr -0.05200 0.14500 0.25000 O1 0.30100 -0.19700 0.25000 O-H2 -0.19800 -0.05400 0.25000