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: DUM2 ; _database_code_amcsd 0007092 _chemical_compound_source 'Gfohl unit, Lower Austria' _chemical_formula_sum 'Al6.61 Mg.12 Ti.09 Fe.02 Si2.83 B O17.991 F.009 H.849' _cell_length_a 4.6948 _cell_length_b 11.8037 _cell_length_c 20.2106 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1119.991 _exptl_crystal_density_diffrn 3.356 _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 0.60450 0.75000 0.74985 0.74000 0.02770 MgM1 0.60450 0.75000 0.74985 0.12000 0.02770 TiM1 0.60450 0.75000 0.74985 0.01000 0.02770 AlM2 0.05808 0.11043 0.47254 0.94000 0.00568 TiM2 0.05808 0.11043 0.47254 0.01000 0.00568 FeM2 0.05808 0.11043 0.47254 0.01000 0.00568 AlM3 0.44026 0.00893 0.56889 0.93000 0.00550 TiM3 0.44026 0.00893 0.56889 0.03000 0.00550 AlM4 0.44214 0.14144 0.71092 0.98000 0.00741 SiT1 0.58718 0.25000 0.40559 0.85000 0.00695 AlT1 0.58718 0.25000 0.40559 0.15000 0.00695 SiT2 0.91298 -0.02388 0.67155 0.99000 0.00683 AlT2 0.91298 -0.02388 0.67155 0.01000 0.00683 B 0.27490 0.25000 0.58384 1.00000 0.00820 O1 0.87670 0.25000 0.45429 1.00000 0.00990 O2 0.33650 0.25000 0.64939 0.71400 0.01080 O-H2 0.33650 0.25000 0.64939 0.28300 0.01080 F2 0.33650 0.25000 0.64939 0.00300 0.01080 O3 0.39593 0.13930 0.42450 1.00000 0.00874 O4 0.09924 0.06427 0.71729 1.00000 0.00903 O5 0.10440 -0.04995 0.60648 1.00000 0.00875 O6 0.61918 0.04632 0.64962 1.00000 0.01006 O7 0.85020 -0.13825 0.71292 0.71400 0.01450 O-H7 0.85020 -0.13825 0.71292 0.28300 0.01450 F7 0.85020 -0.13825 0.71292 0.00300 0.01450 O8 0.65160 0.25000 0.32667 1.00000 0.01460 O9 0.24548 0.14892 0.55200 1.00000 0.00951 O10 0.73850 0.25000 0.72775 1.00000 0.01070 O11 0.74984 0.03342 0.51193 1.00000 0.00764