Whewellite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050526 Tazzoli V, Domeneghetti M C American Mineralogist 65 (1980) 327-334 The crystal structures of whewellite and weddellite: re-examination and comparison CELL PARAMETERS: 6.290810 14.58819 10.11895 90.00000 109.4577 90.00000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 14.94 100.00 5.9315 1 0 0 15.30 29.53 5.7947 0 2 1 19.13 1.69 4.6408 -1 2 1 19.62 4.55 4.5259 -1 0 2 23.53 10.49 3.7803 1 2 1 24.41 88.48 3.6470 0 4 0 26.17 1.68 3.4054 0 3 2 26.91 1.77 3.3130 -1 3 2 28.73 3.24 3.1068 1 4 0 29.73 9.48 3.0046 -1 2 3 30.13 53.43 2.9658 2 0 0 30.66 10.01 2.9153 0 2 3 30.76 2.59 2.9063 2 1 0 30.85 8.07 2.8974 0 4 2 31.50 13.58 2.8398 -1 4 2 35.57 2.94 2.5230 -1 0 4 35.99 30.06 2.4944 -2 2 3 36.72 3.31 2.4469 2 2 1 37.18 6.48 2.4176 1 4 2 37.70 3.08 2.3853 0 0 4 38.18 31.26 2.3561 0 6 1 38.32 27.23 2.3479 1 2 3 38.79 1.96 2.3204 -2 4 2 39.14 2.92 2.3010 2 4 0 39.82 11.77 2.2629 -2 0 4 39.98 10.61 2.2542 -1 6 1 40.81 6.85 2.2101 2 0 2 42.41 4.08 2.1304 1 6 1 43.29 4.00 2.0892 -3 0 2 43.60 17.22 2.0749 -1 4 4 45.41 1.02 1.9962 0 4 4 45.45 1.69 1.9949 1 0 4 45.88 14.13 1.9772 3 0 0 46.38 4.63 1.9569 -1 6 3 46.55 11.01 1.9500 -1 2 5 46.98 8.40 1.9334 -3 2 3 47.02 5.45 1.9316 0 6 3 47.23 5.82 1.9235 -2 6 1 48.12 11.65 1.8901 2 4 2 48.98 4.08 1.8589 -2 2 5 49.34 8.37 1.8461 0 2 5 49.99 7.13 1.8235 0 8 0 50.10 1.62 1.8197 2 2 3 50.31 7.81 1.8128 -3 4 2 50.91 11.23 1.7929 -2 6 3 51.46 1.34 1.7750 2 6 1 52.63 1.91 1.7382 3 4 0 52.70 10.11 1.7361 1 6 3 53.79 1.89 1.7033 0 8 2 54.20 2.91 1.6914 -1 8 2 54.51 1.08 1.6825 -1 0 6 56.12 2.44 1.6381 -3 2 5 56.77 1.22 1.6207 1 2 5 58.06 3.45 1.5878 1 8 2 58.38 3.20 1.5799 -3 6 1 59.22 1.71 1.5593 -2 8 2 59.39 1.54 1.5554 -1 6 5 59.47 1.13 1.5534 2 8 0 59.75 4.79 1.5469 -3 6 3 60.57 3.59 1.5278 -1 4 6 60.79 1.76 1.5229 -4 2 3 61.71 1.97 1.5023 -2 4 6 62.42 1.65 1.4868 2 6 3 62.61 2.88 1.4829 4 0 0 62.92 2.03 1.4763 2 4 4 63.82 2.14 1.4576 0 4 6 64.48 1.49 1.4443 3 2 3 66.43 3.10 1.4066 2 8 2 67.10 2.59 1.3941 -3 4 6 67.86 1.61 1.3803 2 2 5 68.23 2.04 1.3738 -3 8 2 70.21 2.41 1.3398 0 2 7 71.96 1.23 1.3113 -4 6 3 72.41 2.52 1.3043 -4 6 1 75.38 1.07 1.2601 3 6 3 78.65 1.75 1.2157 0 12 0 80.62 1.15 1.1909 1 12 0 80.94 1.40 1.1870 -5 2 5 81.00 1.25 1.1863 5 0 0 81.24 3.51 1.1834 -1 10 5 82.05 1.67 1.1738 3 2 5 83.05 1.52 1.1621 -2 10 5 83.33 2.23 1.1589 0 10 5 83.81 2.16 1.1535 -3 4 8 85.63 2.30 1.1336 0 4 8 86.46 1.07 1.1248 2 12 0 88.73 1.52 1.1018 -3 10 5 89.02 2.22 1.0989 -5 4 6 89.28 1.16 1.0965 1 10 5 89.28 1.16 1.0965 1 10 5 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.