#------------------------------------------------------------------------------ #$Date: 2016-02-16 14:49:47 +0200 (Tue, 16 Feb 2016) $ #$Revision: 176465 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/24/9012423.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_9012423 loop_ _publ_author_name 'Dahlman, B.' _publ_section_title ;The crystal structures of krohnkite, CuNa2(SO4)2*2H2O and brandtite, MnCa2(AsO4)2*2H2O Locality: Harstigen mine, Sweden ; _journal_name_full 'Arkiv for Mineralogi och Geologi' _journal_page_first 339 _journal_page_last 366 _journal_volume 1 _journal_year 1952 _chemical_formula_sum 'As2 Ca2 H4 Mn O10' _chemical_name_mineral Brandtite _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 80.5 _cell_angle_gamma 90 _cell_length_a 5.65 _cell_length_b 12.80 _cell_length_c 5.65 _cell_volume 403.004 _exptl_crystal_density_diffrn 3.700 _cod_original_formula_sum 'Mn Ca2 As2 O10 H4' _cod_database_code 9012423 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 Mn 0.00000 0.00000 0.00000 Ca 0.42800 0.12000 0.25300 As 0.77700 0.12200 0.56600 O1 0.04800 0.16500 0.52200 O2 0.69400 0.05500 0.81600 O3 0.75600 0.03000 0.33600 O4 0.55900 0.20800 0.56600 Wat 0.20800 0.13600 0.93500