Andalusite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050561 Winter J K, Ghose S American Mineralogist 64 (1979) 573-586 Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs T = 25 deg C CELL PARAMETERS: 7.798000 7.903100 5.556600 90.00000 90.00000 90.00000 SPACE GROUP: Pnnm X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 15.98 99.56 5.5494 1 1 0 19.53 69.89 4.5468 0 1 1 19.62 100.00 4.5264 1 0 1 22.51 3.26 3.9506 0 2 0 22.64 54.03 3.9276 1 1 1 22.82 4.41 3.8980 2 0 0 25.28 31.11 3.5239 1 2 0 25.48 25.21 3.4957 2 1 0 32.20 22.78 2.7798 0 0 2 32.26 71.82 2.7747 2 2 0 35.99 5.52 2.4952 1 3 0 36.13 33.15 2.4854 1 1 2 36.17 4.37 2.4827 2 2 1 36.39 24.18 2.4686 3 1 0 37.79 11.39 2.3802 0 3 1 38.22 10.56 2.3542 3 0 1 39.58 18.28 2.2764 1 3 1 39.63 37.12 2.2734 0 2 2 39.95 27.35 2.2561 3 1 1 41.36 26.13 2.1825 1 2 2 41.49 25.98 2.1757 2 1 2 41.59 32.00 2.1711 3 2 0 45.93 6.24 1.9753 0 4 0 46.58 3.68 1.9490 4 0 0 47.47 1.17 1.9148 1 4 0 48.07 5.00 1.8923 4 1 0 49.04 8.49 1.8568 1 3 2 50.39 6.87 1.8104 1 4 1 50.57 7.71 1.8042 0 1 3 50.61 3.70 1.8029 1 0 3 50.96 9.10 1.7913 4 1 1 52.00 1.99 1.7577 1 1 3 52.09 9.81 1.7552 3 3 1 53.35 3.11 1.7165 2 3 2 54.62 2.59 1.6796 2 4 1 57.18 4.38 1.6102 0 4 2 57.75 17.51 1.5958 4 0 2 59.67 3.45 1.5487 1 5 0 60.00 1.12 1.5411 2 2 3 60.05 20.71 1.5400 3 3 2 60.49 6.38 1.5297 5 1 0 60.92 1.32 1.5200 0 5 1 61.12 2.49 1.5156 0 3 3 61.22 3.26 1.5132 3 4 1 61.42 2.68 1.5088 3 0 3 61.46 3.76 1.5079 4 3 1 61.76 1.61 1.5013 5 0 1 62.19 11.88 1.4919 1 5 1 62.37 51.35 1.4882 2 4 2 62.39 6.49 1.4877 1 3 3 62.65 5.44 1.4820 3 1 3 62.77 13.73 1.4797 4 2 2 62.99 11.38 1.4749 5 1 1 63.49 4.47 1.4645 2 5 0 67.34 22.60 1.3899 0 0 4 67.48 12.40 1.3873 4 4 0 69.43 1.28 1.3529 1 5 2 69.71 2.01 1.3482 1 1 4 70.19 2.90 1.3402 5 1 2 70.71 2.90 1.3316 1 4 3 71.18 1.19 1.3240 4 1 3 72.11 3.90 1.3092 3 3 3 72.42 1.13 1.3043 5 3 1 72.74 1.92 1.2993 6 0 0 72.80 1.30 1.2985 1 6 0 72.98 8.56 1.2957 2 5 2 73.16 1.90 1.2929 1 2 4 73.25 1.83 1.2915 2 1 4 73.63 10.56 1.2858 5 2 2 73.88 1.21 1.2821 6 1 0 76.28 3.80 1.2476 2 6 0 76.63 9.36 1.2427 2 2 4 76.73 11.55 1.2413 4 4 2 77.25 4.67 1.2343 6 2 0 78.75 4.89 1.2145 3 5 2 78.77 1.69 1.2142 1 3 4 79.01 4.12 1.2111 3 1 4 80.18 1.67 1.1964 4 3 3 80.27 2.09 1.1952 5 4 1 80.45 1.19 1.1931 5 0 3 80.69 2.92 1.1901 0 6 2 80.83 6.66 1.1884 1 5 3 81.55 4.38 1.1797 5 1 3 81.77 4.98 1.1771 6 0 2 81.98 1.37 1.1746 3 6 0 82.33 2.87 1.1706 3 2 4 87.21 1.10 1.1171 1 7 0 88.84 1.21 1.1008 1 0 5 89.41 2.06 1.0952 1 7 1 89.41 2.06 1.0952 1 7 1 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.