data_global _chemical_name_mineral 'Fluor-schorl' loop_ _publ_author_name 'Ertl A' 'Kolitsch U' 'Dyar M D' 'Hughes J M' 'Rossman G R' 'Pieczka A' 'Henry D J' 'Pezzotta F' 'Prowatke S' 'Lengauer C L' 'Korner W' 'Brandstatter F' 'Francis C A' 'Prem M' 'Tillmanns E' _journal_name_full 'American Mineralogist' _journal_volume 97 _journal_year 2012 _journal_page_first 1402 _journal_page_last 1416 _publ_section_title ; Limitations of Fe2+ and Mn2+ site occupancy in tourmaline: Evidence from Fe2+ - and Mn2+ -rich tourmaline Note: sample bls1 ; _database_code_amcsd 0019249 _chemical_compound_source 'Blocherleitengraben, Lower Austria' _chemical_formula_sum '(Na.94 Ca.06) (Al5.295 Fe3.705) Si6 B3 O30.7 F.3 H3.23' _cell_length_a 16.0393 _cell_length_b 16.0393 _cell_length_c 7.2536 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 1616.051 _exptl_crystal_density_diffrn 3.313 _symmetry_space_group_name_H-M 'R 3 m' 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 0.75000 0.94000 0.02320 CaX 0.00000 0.00000 0.75000 0.06000 0.02320 AlY 0.87678 0.93839 0.33930 0.17100 0.01064 FeY 0.87678 0.93839 0.33930 0.82900 0.01064 AlZ 0.70130 0.73828 0.36190 0.79700 0.00771 FeZ 0.70130 0.73828 0.36190 0.20300 0.00771 SiT 0.80868 0.81039 0.97320 1.00000 0.00755 B 0.88976 0.77952 0.51940 1.00000 0.01020 O1 0.00000 0.00000 0.18950 0.47000 0.02190 O-H1 0.00000 0.00000 0.18950 0.23000 0.02190 F1 0.00000 0.00000 0.18950 0.30000 0.02190 O2 0.93852 0.87704 0.49190 1.00000 0.01440 O3 0.73317 0.86659 0.46140 1.00000 0.01710 O4 0.90743 0.81485 0.90470 1.00000 0.01300 O5 0.81543 0.90772 0.88400 1.00000 0.01300 O6 0.80337 0.81272 0.19450 1.00000 0.01157 O7 0.71602 0.71574 0.89390 1.00000 0.01232 O8 0.79074 0.72986 0.53170 1.00000 0.01500 H3 0.73000 0.86500 0.58300 1.00000 0.08100 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 NaX 0.02230 0.02230 0.02520 0.01110 0.00000 0.00000 CaX 0.02230 0.02230 0.02520 0.01110 0.00000 0.00000 AlY 0.01091 0.00810 0.01386 0.00546 -0.00379 -0.00189 FeY 0.01091 0.00810 0.01386 0.00546 -0.00379 -0.00189 AlZ 0.00729 0.00751 0.00779 0.00330 4.00000 0.00052 FeZ 0.00729 0.00751 0.00779 0.00330 4.00000 0.00052 SiT 0.00706 0.00672 0.00890 0.00349 -0.00056 -0.00061 B 0.01020 0.00960 0.01070 0.00480 0.00070 0.00140 O1 0.02580 0.02580 0.01410 0.01290 0.00000 0.00000 O-H1 0.02580 0.02580 0.01410 0.01290 0.00000 0.00000 F1 0.02580 0.02580 0.01410 0.01290 0.00000 0.00000 O2 0.01640 0.00920 0.01510 0.00460 0.00030 0.00070 O3 0.02550 0.01850 0.00980 0.01270 0.00310 0.00150 O4 0.01070 0.01860 0.01220 0.00930 -0.00070 -0.00140 O5 0.01870 0.01050 0.01260 0.00940 0.00150 0.00080 O6 0.01300 0.01280 0.00920 0.00660 -0.00060 -0.00090 O7 0.01140 0.00940 0.01360 0.00320 -0.00350 -0.00120 O8 0.00880 0.01400 0.02240 0.00580 0.00110 0.00240