#------------------------------------------------------------------------------ #$Date: 2024-05-23 12:45:01 +0300 (Thu, 23 May 2024) $ #$Revision: 292002 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/42/9014216.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_9014216 loop_ _publ_author_name 'Antao, S. M.' 'Hassan, I.' _publ_section_title ; Temperature dependence of the structural parameters in the transformation of aragonite to calcite, as determined from in situ synchrotron powder X-ray-diffraction data Note: T = 662 C Note: P = 101 kPa ; _journal_name_full 'The Canadian Mineralogist' _journal_page_first 1225 _journal_page_last 1236 _journal_paper_doi 10.3749/canmin.48.5.1225 _journal_volume 48 _journal_year 2010 _chemical_compound_source 'Cuenca, Spain' _chemical_formula_sum 'C Ca O3' _chemical_name_mineral Calcite _space_group_IT_number 167 _symmetry_space_group_name_Hall '-R 3 2"c' _symmetry_space_group_name_H-M 'R -3 c :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 4.9759 _cell_length_b 4.9759 _cell_length_c 17.4316 _cell_formula_units_Z 6 _cell_volume 373.776 _database_code_amcsd 0017867 _exptl_crystal_density_diffrn 2.668 _cod_original_sg_symbol_H-M 'R -3 c' _cod_original_formula_sum 'Ca C O3' _cod_database_code 9014216 loop_ _space_group_symop_operation_xyz x,y,z 2/3+x,1/3+y,1/3+z 1/3+x,2/3+y,2/3+z x,x-y,1/2+z 2/3+x,1/3+x-y,5/6+z 1/3+x,2/3+x-y,1/6+z y,x,1/2-z 2/3+y,1/3+x,5/6-z 1/3+y,2/3+x,1/6-z -x+y,y,1/2+z 2/3-x+y,1/3+y,5/6+z 1/3-x+y,2/3+y,1/6+z -x,-x+y,1/2-z 2/3-x,1/3-x+y,5/6-z 1/3-x,2/3-x+y,1/6-z -y,-x,1/2+z 2/3-y,1/3-x,5/6+z 1/3-y,2/3-x,1/6+z x-y,-y,1/2-z 2/3+x-y,1/3-y,5/6-z 1/3+x-y,2/3-y,1/6-z y,-x+y,-z 2/3+y,1/3-x+y,1/3-z 1/3+y,2/3-x+y,2/3-z -x+y,-x,z 2/3-x+y,1/3-x,1/3+z 1/3-x+y,2/3-x,2/3+z -x,-y,-z 2/3-x,1/3-y,1/3-z 1/3-x,2/3-y,2/3-z -y,x-y,z 2/3-y,1/3+x-y,1/3+z 1/3-y,2/3+x-y,2/3+z x-y,x,-z 2/3+x-y,1/3+x,1/3-z 1/3+x-y,2/3+x,2/3-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ca 0.00000 0.00000 0.00000 0.04080 C 0.00000 0.00000 0.25000 0.07200 O1 0.24970 0.00000 0.25000 0.07200 loop_ _cod_related_entry_id _cod_related_entry_database _cod_related_entry_code 1 AMCSD 0017867