#------------------------------------------------------------------------------ #$Date: 2013-05-09 16:53:25 +0300 (Thu, 09 May 2013) $ #$Revision: 86000 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/55/9015599.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_9015599 loop_ _publ_author_name 'Grice, J. D.' 'Ercit, T. S.' _publ_section_title ; Ordering of Fe and Mg in the tourmaline crystal structure: The correct formula Sample: Dravite 32008 ; _journal_name_full 'Neues Jahrbuch fur Mineralogie, Abhandlungen' _journal_page_first 245 _journal_page_last 266 _journal_volume 165 _journal_year 1993 _chemical_compound_source 'Bronson Station, Hastings Co., Ontario, Canada' _chemical_formula_sum 'Al5.47 B3 Ca0.35 F0.44 Fe1.1 H3.21 Li0.039 Mg2.35 Na0.55 O30.56 Si5.98 Ti0.05' _chemical_name_mineral Fluor-dravite _space_group_IT_number 160 _symmetry_space_group_name_Hall 'R 3 -2"' _symmetry_space_group_name_H-M 'R 3 m :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 15.981 _cell_length_b 15.981 _cell_length_c 7.210 _cell_volume 1594.681 _database_code_amcsd 0018790 _exptl_crystal_density_diffrn 3.113 _[local]_cod_cif_authors_sg_H-M 'R 3 m' _[local]_cod_chemical_formula_sum_orig 'Na.55 Ca.35 Mg2.35 Li.039 Fe1.1 Al5.47 Ti.05 Si5.98 B3 F.44 O30.56 H3.21' _cod_database_code 9015599 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,z 2/3+x,1/3+x-y,1/3+z 1/3+x,2/3+x-y,2/3+z -y,-x,z 2/3-y,1/3-x,1/3+z 1/3-y,2/3-x,2/3+z -x+y,y,z 2/3-x+y,1/3+y,1/3+z 1/3-x+y,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_occupancy _atom_site_U_iso_or_equiv NaX 0.00000 0.00000 0.22710 0.55000 0.01690 CaX 0.00000 0.00000 0.22710 0.35000 0.01690 MgY 0.12388 0.06194 0.63340 0.63000 0.00760 LiY 0.12388 0.06194 0.63340 0.01300 0.00760 Fe2Y 0.12388 0.06194 0.63340 0.15000 0.00760 Fe3Y 0.12388 0.06194 0.63340 0.20330 0.00760 AlZ 0.29802 0.26169 0.61240 0.91170 0.00490 FeZ 0.29802 0.26169 0.61240 0.00670 0.00490 MgZ 0.29802 0.26169 0.61240 0.07670 0.00490 TiZ 0.29802 0.26169 0.61240 0.00500 0.00490 SiT 0.19178 0.19007 0.00000 0.99670 0.00470 TiT 0.19178 0.19007 0.00000 0.00330 0.00470 B 0.10980 0.21960 0.45310 1.00000 0.00700 F1 0.00000 0.00000 0.77660 0.44000 0.01560 O-H1 0.00000 0.00000 0.77660 0.21000 0.01560 O1 0.00000 0.00000 0.77660 0.35000 0.01560 O2 0.06095 0.12190 0.47820 1.00000 0.01010 O3 0.26726 0.13363 0.51220 1.00000 0.01110 O4 0.09254 0.18508 0.07060 1.00000 0.00910 O5 0.18280 0.09140 0.09130 1.00000 0.00960 O6 0.19620 0.18690 0.77790 1.00000 0.00840 O7 0.28486 0.28434 0.08020 1.00000 0.00830 O8 0.20950 0.27020 0.44220 1.00000 0.00940 H3 0.26000 0.13000 0.40900 1.00000 0.01000