Andalusite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050258 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 16.01 99.56 5.5467 1 1 0 19.57 69.89 4.5433 0 1 1 19.65 100.00 4.5234 1 0 1 22.54 3.26 3.9481 0 2 0 22.68 54.03 3.9250 1 1 1 22.85 4.41 3.8966 2 0 0 25.31 31.11 3.5219 1 2 0 25.51 25.21 3.4943 2 1 0 32.25 22.78 2.7774 0 0 2 32.29 71.82 2.7733 2 2 0 36.03 5.52 2.4937 1 3 0 36.18 33.15 2.4835 1 1 2 36.21 4.37 2.4813 2 2 1 36.42 24.18 2.4676 3 1 0 37.83 11.39 2.3786 0 3 1 38.26 10.56 2.3531 3 0 1 39.63 18.28 2.2750 1 3 1 39.69 37.12 2.2716 0 2 2 39.99 27.35 2.2551 3 1 1 41.41 26.13 2.1809 1 2 2 41.54 25.98 2.1743 2 1 2 41.62 32.00 2.1701 3 2 0 45.98 6.24 1.9741 0 4 0 46.62 3.68 1.9483 4 0 0 47.52 1.17 1.9136 1 4 0 48.10 5.00 1.8916 4 1 0 49.10 8.49 1.8555 1 3 2 50.44 6.87 1.8093 1 4 1 50.63 7.71 1.8027 0 1 3 50.67 3.70 1.8015 1 0 3 51.00 9.10 1.7906 4 1 1 52.07 1.99 1.7563 1 1 3 52.13 9.81 1.7543 3 3 1 53.41 3.11 1.7154 2 3 2 54.67 2.59 1.6786 2 4 1 57.25 4.38 1.6090 0 4 2 57.80 17.51 1.5950 4 0 2 59.73 3.45 1.5478 1 5 0 60.07 1.12 1.5399 2 2 3 60.11 20.71 1.5391 3 3 2 60.54 6.38 1.5291 5 1 0 60.98 1.32 1.5191 0 5 1 61.19 2.49 1.5144 0 3 3 61.28 3.26 1.5124 3 4 1 61.49 2.68 1.5078 3 0 3 61.51 3.76 1.5072 4 3 1 61.81 1.61 1.5007 5 0 1 62.26 11.88 1.4910 1 5 1 62.43 51.35 1.4872 2 4 2 62.46 6.49 1.4866 1 3 3 62.72 5.44 1.4810 3 1 3 62.82 13.73 1.4789 4 2 2 63.04 11.38 1.4743 5 1 1 63.55 4.47 1.4636 2 5 0 67.42 22.60 1.3887 0 0 4 67.53 12.40 1.3867 4 4 0 69.51 1.28 1.3520 1 5 2 69.79 2.01 1.3471 1 1 4 70.25 2.90 1.3395 5 1 2 70.78 2.90 1.3307 1 4 3 71.25 1.19 1.3232 4 1 3 72.18 3.90 1.3083 3 3 3 72.48 1.13 1.3037 5 3 1 72.79 1.92 1.2989 6 0 0 72.87 1.30 1.2977 1 6 0 73.05 8.56 1.2948 2 5 2 73.24 1.90 1.2919 1 2 4 73.34 1.83 1.2905 2 1 4 73.69 10.56 1.2852 5 2 2 73.93 1.21 1.2816 6 1 0 76.35 3.80 1.2469 2 6 0 76.72 9.36 1.2417 2 2 4 76.80 11.55 1.2406 4 4 2 77.31 4.67 1.2338 6 2 0 78.83 4.89 1.2138 3 5 2 78.87 1.69 1.2133 1 3 4 79.10 4.12 1.2102 3 1 4 80.26 1.67 1.1957 4 3 3 80.34 2.09 1.1947 5 4 1 80.52 1.19 1.1924 5 0 3 80.78 2.92 1.1893 0 6 2 80.92 6.66 1.1875 1 5 3 81.63 4.38 1.1790 5 1 3 81.84 4.98 1.1766 6 0 2 82.05 1.37 1.1740 3 6 0 82.42 2.87 1.1697 3 2 4 87.30 1.10 1.1164 1 7 0 88.95 1.21 1.0999 1 0 5 89.50 2.06 1.0945 1 7 1 89.50 2.06 1.0945 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.