#------------------------------------------------------------------------------ #$Date: 2010-06-10 18:11:07 +0300 (Thu, 10 Jun 2010) $ #$Revision: 1210 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9011091.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_9011091 loop_ _publ_author_name 'Sudarsanan, K.' 'Young, R. A.' _publ_section_title ; Significant precision in crystal structural details: Holly Springs hydroxyapatite Locality: Holly Springs, Cherokee County, Georgia, USA Sample: X-23-4 ; _journal_name_full 'Acta Crystallographica, Section B' _journal_page_first 1534 _journal_page_last 1543 _journal_volume 25 _journal_year 1969 _chemical_formula_sum 'Ca5 H O13 P3' _chemical_name_mineral Hydroxylapatite _space_group_IT_number 176 _symmetry_space_group_name_Hall '-P 6c' _symmetry_space_group_name_H-M 'P 63/m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 9.424 _cell_length_b 9.424 _cell_length_c 6.879 _cell_volume 529.086 _exptl_crystal_density_diffrn 3.153 _[local]_cod_chemical_formula_sum_orig 'Ca5 P3 O13 H' _cod_database_code 9011091 _amcsd_database_code AMCSD#0009282 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x+y,-x,1/2-z x-y,x,1/2+z y,-x+y,-z -y,x-y,z x,y,1/2-z -x,-y,1/2+z x-y,x,-z -x+y,-x,z -y,x-y,1/2-z y,-x+y,1/2+z -x,-y,-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 CaI 0.01046 0.01046 0.00432 0.00523 0.00000 0.00000 CaII 0.00709 0.00776 0.00671 0.00337 0.00000 0.00000 P 0.00641 0.00574 0.00599 0.00337 0.00000 0.00000 OI 0.01316 0.01012 0.01295 0.00911 0.00000 0.00000 OII 0.00675 0.00877 0.02301 0.00304 0.00000 0.00000 OIII 0.03104 0.01417 0.01175 0.01518 -0.01166 -0.00768 Oh 0.00844 0.00844 0.02445 0.00422 0.00000 0.00000 H 0.04353 0.04353 0.02493 0.02177 0.00000 0.00000 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy CaI 0.33333 0.66667 0.00150 1.00000 CaII 0.24680 0.99340 0.25000 1.00000 P 0.39870 0.36850 0.25000 1.00000 OI 0.32840 0.48480 0.25000 1.00000 OII 0.58730 0.46510 0.25000 1.00000 OIII 0.34370 0.25790 0.07020 1.00000 O-h 0.00000 0.00000 0.19500 0.50000 H 0.00000 0.00000 0.06080 0.50000