data_global _chemical_name_mineral 'Dumortierite' loop_ _publ_author_name 'Fuchs Y' 'Ertl A' 'Hughes J M' 'Prowatke S' 'Brandstatter F' 'Schuster R' _journal_name_full 'European Journal of Mineralogy' _journal_volume 17 _journal_year 2005 _journal_page_first 173 _journal_page_last 183 _publ_section_title ; Dumortierite from the Gfohl unit, Lower Austria: chemistry, structure, and infra-red spectroscopy Sample: DUM1 ; _database_code_amcsd 0007091 _chemical_compound_source 'Gfohl unit, Lower Austria' _chemical_formula_sum 'Al6.64 Mg.09 Ti.07 Fe.04 Si2.84 B O17.979 F.021 H.81' _cell_length_a 4.6900 _cell_length_b 11.7875 _cell_length_c 20.1823 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1115.746 _exptl_crystal_density_diffrn 3.372 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-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 AlM1 0.60240 0.75000 0.74985 0.78000 0.02710 MgM1 0.60240 0.75000 0.74985 0.09000 0.02710 TiM1 0.60240 0.75000 0.74985 0.01000 0.02710 AlM2 0.05807 0.11044 0.47251 0.93000 0.00578 TiM2 0.05807 0.11044 0.47251 0.03000 0.00578 AlM3 0.44028 0.00893 0.56891 0.94000 0.00587 FeM3 0.44028 0.00893 0.56891 0.02000 0.00587 AlM4 0.44231 0.14142 0.71100 0.98000 0.00753 SiT1 0.58715 0.25000 0.40541 0.85000 0.00717 AlT1 0.58715 0.25000 0.40541 0.15000 0.00717 SiT2 0.91289 -0.02418 0.67168 0.99500 0.00710 AlT2 0.91289 -0.02418 0.67168 0.00500 0.00710 B 0.27490 0.25000 0.58386 1.00000 0.00880 O1 0.87690 0.25000 0.45419 1.00000 0.01020 O2 0.33750 0.25000 0.64938 0.72300 0.01100 O-H2 0.33750 0.25000 0.64938 0.27000 0.01100 F2 0.33750 0.25000 0.64938 0.00700 0.01100 O3 0.39605 0.13933 0.42443 1.00000 0.00916 O4 0.09935 0.06414 0.71730 1.00000 0.00947 O5 0.10440 -0.05002 0.60651 1.00000 0.00905 O6 0.61931 0.04612 0.64971 1.00000 0.01037 O7 0.85070 -0.13869 0.71307 0.72300 0.01500 O-H7 0.85070 -0.13869 0.71307 0.27000 0.01500 F7 0.85070 -0.13869 0.71307 0.00700 0.01500 O8 0.65110 0.25000 0.32635 1.00000 0.01510 O9 0.24556 0.14885 0.55201 1.00000 0.00975 O10 0.73870 0.25000 0.72778 1.00000 0.01120 O11 0.74983 0.03358 0.51196 1.00000 0.00821