Andalusite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050626 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: 7.792531 7.898150 5.556166 90.00000 90.00000 90.00000 SPACE GROUP: Pnnm X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 15.96 99.56 5.5471 1 1 0 19.51 69.89 4.5444 0 1 1 19.60 100.00 4.5240 1 0 1 22.49 3.26 3.9491 0 2 0 22.63 54.03 3.9256 1 1 1 22.80 4.41 3.8963 2 0 0 25.26 31.11 3.5226 1 2 0 25.46 25.21 3.4942 2 1 0 32.19 22.78 2.7781 0 0 2 32.24 71.82 2.7736 2 2 0 35.97 5.52 2.4942 1 3 0 36.13 33.15 2.4840 1 1 2 36.16 4.37 2.4816 2 2 1 36.38 24.18 2.4675 3 1 0 37.78 11.39 2.3791 0 3 1 38.21 10.56 2.3531 3 0 1 39.57 18.28 2.2755 1 3 1 39.63 37.12 2.2722 0 2 2 39.94 27.35 2.2551 3 1 1 41.35 26.13 2.1813 1 2 2 41.49 25.98 2.1746 2 1 2 41.57 32.00 2.1701 3 2 0 45.92 6.24 1.9745 0 4 0 46.58 3.68 1.9481 4 0 0 47.46 1.17 1.9140 1 4 0 48.06 5.00 1.8914 4 1 0 49.04 8.49 1.8559 1 3 2 50.38 6.87 1.8097 1 4 1 50.57 7.71 1.8031 0 1 3 50.61 3.70 1.8019 1 0 3 50.95 9.10 1.7905 4 1 1 52.01 1.99 1.7567 1 1 3 52.08 9.81 1.7544 3 3 1 53.35 3.11 1.7157 2 3 2 54.61 2.59 1.6789 2 4 1 57.18 4.38 1.6094 0 4 2 57.75 17.51 1.5950 4 0 2 59.67 3.45 1.5481 1 5 0 60.01 1.12 1.5402 2 2 3 60.05 20.71 1.5393 3 3 2 60.49 6.38 1.5290 5 1 0 60.92 1.32 1.5194 0 5 1 61.12 2.49 1.5148 0 3 3 61.22 3.26 1.5126 3 4 1 61.43 2.68 1.5080 3 0 3 61.46 3.76 1.5073 4 3 1 61.77 1.61 1.5006 5 0 1 62.19 11.88 1.4913 1 5 1 62.37 51.35 1.4875 2 4 2 62.39 6.49 1.4870 1 3 3 62.66 5.44 1.4812 3 1 3 62.77 13.73 1.4790 4 2 2 63.00 11.38 1.4742 5 1 1 63.49 4.47 1.4639 2 5 0 67.35 22.60 1.3890 0 0 4 67.48 12.40 1.3868 4 4 0 69.44 1.28 1.3523 1 5 2 69.73 2.01 1.3474 1 1 4 70.20 2.90 1.3395 5 1 2 70.72 2.90 1.3310 1 4 3 71.19 1.19 1.3233 4 1 3 72.12 3.90 1.3085 3 3 3 72.43 1.13 1.3037 5 3 1 72.75 1.92 1.2988 6 0 0 72.80 1.30 1.2980 1 6 0 72.99 8.56 1.2951 2 5 2 73.18 1.90 1.2922 1 2 4 73.27 1.83 1.2908 2 1 4 73.64 10.56 1.2852 5 2 2 73.89 1.21 1.2815 6 1 0 76.28 3.80 1.2471 2 6 0 76.66 9.36 1.2420 2 2 4 76.74 11.55 1.2408 4 4 2 77.26 4.67 1.2337 6 2 0 78.76 4.89 1.2140 3 5 2 78.80 1.69 1.2135 1 3 4 79.04 4.12 1.2104 3 1 4 80.20 1.67 1.1958 4 3 3 80.29 2.09 1.1947 5 4 1 80.47 1.19 1.1925 5 0 3 80.71 2.92 1.1896 0 6 2 80.85 6.66 1.1878 1 5 3 81.57 4.38 1.1791 5 1 3 81.79 4.98 1.1765 6 0 2 81.99 1.37 1.1742 3 6 0 82.35 2.87 1.1699 3 2 4 87.22 1.10 1.1167 1 7 0 88.88 1.21 1.1001 1 0 5 89.43 2.06 1.0948 1 7 1 89.43 2.06 1.0948 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.