Al4B2O9 Fischer R X, Kahlenberg V, Voll D, MacKenzie K J D, Smith M E, Schnetger B, Brumsack H-J, Schneider H American Mineralogist 93 (2008) 918-927 Crystal structure of synthetic Al4B2O9: A member of the mullite family closely related to boralsilite _database_code_amcsd 0004586 CELL PARAMETERS: 14.8056 5.5413 15.0531 90.000 90.913 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1234.834 Density (g/cm3): 2.942 MAX. ABS. INTENSITY / VOLUME**2: 7.488624125 RIR: 0.829 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 5.87 8.83 15.0512 0 0 1 2 11.76 2.59 7.5256 0 0 2 2 11.96 5.24 7.4019 2 0 0 2 13.41 12.15 6.6006 2 0 1 2 16.67 100.00 5.3197 -2 0 2 2 16.93 91.33 5.2356 2 0 2 2 17.09 1.03 5.1896 1 1 0 4 17.68 4.70 5.0171 0 0 3 2 18.05 52.68 4.9147 -1 1 1 4 18.11 5.34 4.8978 1 1 1 4 20.74 1.24 4.2835 -1 1 2 4 20.85 4.50 4.2612 1 1 2 4 21.56 1.35 4.1226 2 0 3 2 23.64 1.55 3.7628 0 0 4 2 24.15 2.44 3.6852 3 1 0 4 24.61 1.78 3.6172 -1 1 3 4 24.68 1.37 3.6072 -4 0 1 2 24.75 4.90 3.5970 1 1 3 4 24.94 13.00 3.5697 3 1 1 4 26.40 9.91 3.3761 -2 0 4 2 26.67 19.10 3.3422 -4 0 2 2 26.75 5.05 3.3329 2 0 4 2 27.02 15.85 3.3003 4 0 2 2 29.24 1.74 3.0544 -1 1 4 4 30.24 5.06 2.9559 4 0 3 2 31.92 1.14 2.8041 -2 0 5 2 32.28 1.93 2.7731 2 0 5 2 32.31 4.59 2.7706 0 2 0 2 33.70 23.32 2.6598 -4 0 4 2 33.84 1.07 2.6486 -3 1 4 4 34.25 28.29 2.6178 4 0 4 2 34.26 2.17 2.6173 3 1 4 4 34.36 1.44 2.6102 -1 1 5 4 34.50 1.21 2.6000 0 2 2 4 34.57 1.15 2.5948 2 2 0 4 34.79 1.54 2.5790 -5 1 1 4 36.57 12.17 2.4573 -2 2 2 4 36.58 3.43 2.4564 5 1 2 4 36.70 12.29 2.4489 2 2 2 4 37.02 2.12 2.4286 6 0 1 2 37.68 4.31 2.3874 -2 0 6 2 38.06 3.73 2.3644 2 0 6 2 38.24 1.04 2.3537 -4 0 5 2 38.39 2.83 2.3450 -3 1 5 4 38.65 2.25 2.3298 -5 1 3 4 40.01 1.11 2.2536 1 1 6 4 40.68 14.75 2.2180 4 2 0 4 42.02 1.29 2.1502 0 0 7 2 42.19 22.60 2.1417 -2 2 4 4 42.37 7.03 2.1330 -4 2 2 4 42.43 11.36 2.1306 2 2 4 4 42.61 10.04 2.1220 4 2 2 4 43.25 19.72 2.0920 -4 0 6 2 43.39 1.77 2.0853 -3 1 6 4 43.65 1.13 2.0737 -2 0 7 2 43.92 8.76 2.0613 4 0 6 2 44.22 6.08 2.0484 6 0 4 2 45.67 2.08 1.9864 -5 1 5 4 45.77 2.58 1.9825 1 1 7 4 45.93 1.07 1.9758 7 1 0 4 46.05 1.08 1.9709 -2 2 5 4 46.35 10.41 1.9590 5 1 5 4 47.38 6.74 1.9188 -4 2 4 4 47.80 1.16 1.9028 4 2 4 4 48.38 1.92 1.8814 0 0 8 2 49.24 2.62 1.8505 8 0 0 2 49.74 1.10 1.8331 8 0 1 2 49.82 1.41 1.8304 -2 0 8 2 49.85 3.37 1.8291 7 1 3 4 49.94 1.08 1.8263 6 2 1 4 50.13 6.86 1.8199 -1 3 1 4 50.15 1.70 1.8190 1 3 1 4 50.22 1.43 1.8165 2 0 8 2 50.46 1.13 1.8086 -2 2 6 4 50.61 2.24 1.8036 -8 0 2 2 50.88 3.25 1.7947 -6 2 2 4 51.18 10.16 1.7848 6 2 2 4 51.54 1.22 1.7732 -6 0 6 2 52.43 1.21 1.7452 6 0 6 2 53.27 1.22 1.7197 -3 3 1 4 53.34 1.57 1.7175 3 3 1 4 54.35 2.52 1.6880 -4 0 8 2 54.93 4.59 1.6715 -5 1 7 4 54.94 2.25 1.6711 -8 0 4 2 55.00 2.22 1.6695 -4 2 6 4 55.23 1.52 1.6632 -7 1 5 4 55.70 6.11 1.6502 8 0 4 2 55.81 7.69 1.6471 6 2 4 4 56.05 2.86 1.6406 7 1 5 4 59.23 1.55 1.5601 -5 3 1 4 59.38 13.78 1.5565 0 2 8 4 60.13 4.82 1.5388 8 2 0 4 60.63 1.24 1.5272 -2 2 8 4 62.15 16.08 1.4935 -6 2 6 4 62.81 1.06 1.4795 -2 0 10 2 62.94 10.69 1.4767 6 2 6 4 63.46 1.83 1.4658 -7 1 7 4 64.33 1.28 1.4482 10 0 2 2 65.20 8.64 1.4310 -8 2 4 4 65.35 4.42 1.4280 4 2 8 4 65.88 5.15 1.4177 8 2 4 4 65.90 1.15 1.4174 -5 1 9 4 66.86 1.13 1.3994 5 1 9 4 67.63 14.87 1.3853 0 4 0 2 67.70 1.30 1.3839 7 3 1 4 70.21 1.98 1.3406 -2 4 2 4 70.29 2.16 1.3392 2 4 2 4 70.42 1.11 1.3370 7 3 3 4 70.86 2.17 1.3299 -8 0 8 2 71.16 1.71 1.3249 -1 1 11 4 71.31 1.86 1.3226 0 2 10 4 71.39 2.45 1.3213 1 1 11 4 72.17 1.51 1.3089 8 0 8 2 72.41 3.58 1.3051 -2 2 10 4 72.82 9.73 1.2988 2 2 10 4 73.43 4.10 1.2895 -10 2 2 4 73.84 1.25 1.2834 10 2 2 4 74.34 1.12 1.2759 6 0 10 2 74.64 1.25 1.2716 -5 3 7 4 75.60 1.34 1.2578 7 3 5 4 76.89 1.32 1.2399 4 2 10 4 76.96 3.68 1.2389 -10 2 4 4 77.35 2.40 1.2336 12 0 0 2 77.72 2.58 1.2287 -4 4 4 4 77.76 1.76 1.2282 10 2 4 4 78.04 3.47 1.2244 4 4 4 4 80.09 1.32 1.1982 -2 4 6 4 80.33 1.43 1.1953 2 4 6 4 83.74 2.30 1.1550 -4 4 6 4 84.41 1.19 1.1475 6 4 4 4 86.32 1.20 1.1270 12 2 0 4 89.25 1.13 1.0975 -1 3 11 4 89.37 1.09 1.0963 -4 2 12 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.