Dravite Hawthorne F C, MacDonald D J, Burns P C American Mineralogist 78 (1993) 265-270 Reassignment of cation site occupancies in tourmaline: Al-Mg disorder in the crystal structure of dravite Locality: Osarar, Narok District, Kenya _database_code_amcsd 0001551 CELL PARAMETERS: 15.9470 15.9470 7.2140 90.000 90.000 120.000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1588.784 Density (g/cm3): 3.197 MAX. ABS. INTENSITY / VOLUME**2: 7.221322503 RIR: 0.735 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.85 21.90 6.3942 1 0 1 3 17.78 28.31 4.9883 0 2 1 3 19.28 5.98 4.6035 3 0 0 3 21.01 91.34 4.2289 2 1 1 6 22.30 94.18 3.9867 2 2 0 6 25.52 74.65 3.4899 0 1 2 3 26.34 11.18 3.3830 1 3 1 6 27.91 2.27 3.1971 2 0 2 3 28.66 3.74 3.1143 4 0 1 3 29.64 8.13 3.0137 4 1 0 6 30.12 72.95 2.9674 1 2 2 6 30.82 10.15 2.9009 3 2 1 6 33.72 2.28 2.6578 3 3 0 6 34.14 9.32 2.6259 3 1 2 6 34.78 100.00 2.5795 0 5 1 3 36.01 1.93 2.4942 0 4 2 3 36.61 5.26 2.4543 2 4 1 6 37.40 13.38 2.4047 0 0 3 1 37.79 15.62 2.3804 2 3 2 6 38.37 17.34 2.3457 5 1 1 6 39.14 2.97 2.3018 6 0 0 3 40.80 1.61 2.2115 5 2 0 6 41.16 10.45 2.1930 5 0 2 3 41.71 18.20 2.1657 4 3 1 6 42.41 10.05 2.1314 0 3 3 3 42.41 8.20 2.1314 3 0 3 3 42.77 4.00 2.1145 4 2 2 6 43.97 13.75 2.0591 2 2 3 6 44.32 44.25 2.0438 1 5 2 6 44.83 6.06 2.0217 1 6 1 6 45.50 5.64 1.9934 4 4 0 6 47.31 38.47 1.9215 3 4 2 6 47.79 2.61 1.9030 7 0 1 3 47.79 1.77 1.9030 3 5 1 6 48.43 5.54 1.8796 1 4 3 6 49.22 7.61 1.8511 6 2 1 6 49.85 2.12 1.8292 7 1 0 6 51.07 2.79 1.7883 1 0 4 3 51.23 5.65 1.7832 3 3 3 6 52.44 1.46 1.7450 0 2 4 3 52.90 1.81 1.7309 0 7 2 3 52.90 1.43 1.7309 5 3 2 6 53.34 1.05 1.7174 5 4 1 6 54.23 4.12 1.6915 2 6 2 6 55.24 14.41 1.6628 0 6 3 3 55.24 5.21 1.6628 6 0 3 3 55.97 14.86 1.6429 2 7 1 6 57.67 2.76 1.5986 4 0 4 3 57.82 16.43 1.5947 5 5 0 6 58.10 2.82 1.5877 4 5 2 6 58.52 2.16 1.5773 8 1 1 6 58.93 1.28 1.5674 3 2 4 6 59.77 5.89 1.5473 4 6 1 6 60.32 5.03 1.5345 9 0 0 3 60.59 6.27 1.5283 7 2 2 6 61.00 1.25 1.5190 7 3 1 6 61.40 17.46 1.5101 0 5 4 3 61.54 4.71 1.5068 8 2 0 6 62.61 4.54 1.4837 2 4 4 6 63.02 1.63 1.4751 1 8 2 6 63.81 16.26 1.4587 5 1 4 6 63.95 5.11 1.4559 1 7 3 6 63.95 1.44 1.4559 7 1 3 6 64.21 4.15 1.4504 6 4 2 6 64.99 3.87 1.4350 0 1 5 3 65.14 4.88 1.4321 7 4 0 6 65.79 7.27 1.4194 6 5 1 6 65.79 2.22 1.4194 1 9 1 6 66.17 13.92 1.4122 4 3 4 6 66.31 4.68 1.4096 6 3 3 6 66.31 1.73 1.4096 3 6 3 6 68.12 1.59 1.3765 3 8 1 6 69.27 12.06 1.3564 10 0 1 3 70.03 2.83 1.3436 5 6 2 6 70.77 3.79 1.3312 0 4 5 3 70.78 1.05 1.3311 7 0 4 3 70.78 2.39 1.3311 3 5 4 6 70.91 4.51 1.3290 5 5 3 6 70.92 4.50 1.3289 6 6 0 6 71.91 1.98 1.3131 2 3 5 6 71.91 1.24 1.3130 6 2 4 6 72.05 12.50 1.3108 10 1 0 6 72.29 3.79 1.3070 8 3 2 6 72.67 1.43 1.3011 5 7 1 6 73.41 2.22 1.2897 0 10 2 3 73.79 1.94 1.2841 8 4 1 6 74.15 12.11 1.2788 5 0 5 3 74.28 2.32 1.2769 2 8 3 6 74.28 4.48 1.2768 9 3 0 6 75.26 2.92 1.2626 5 4 4 6 76.74 1.16 1.2419 7 5 2 6 77.11 4.95 1.2369 0 11 1 3 77.59 1.15 1.2304 4 7 3 6 77.84 1.73 1.2271 4 8 2 6 78.21 1.25 1.2223 2 10 1 6 78.56 3.46 1.2177 3 4 5 6 79.76 1.67 1.2023 0 0 6 1 80.73 1.81 1.1903 6 1 5 6 80.74 1.03 1.1902 4 6 4 6 81.47 3.93 1.1814 11 1 1 6 83.01 1.64 1.1633 3 0 6 3 84.11 6.84 1.1509 10 1 3 6 85.42 1.10 1.1365 1 11 2 6 86.13 1.04 1.1290 6 5 4 6 86.26 2.04 1.1277 9 3 3 6 87.31 1.00 1.1167 1 4 6 6 89.35 2.27 1.0965 10 0 4 3 89.46 1.87 1.0955 3 3 6 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.