Celsian Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060460 Griffen D T, Ribbe P H American Mineralogist 61 (1976) 414-418 Refinement of the crystal structure of celsian CELL PARAMETERS: 8.637295 13.04867 14.40737 90.00000 115.1239 90.00000 SPACE GROUP: I2/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 13.59 43.88 6.5243 0 2 0 13.59 20.87 6.5222 0 0 2 15.13 19.23 5.8637 -1 1 2 19.26 35.16 4.6126 0 2 2 22.21 6.89 4.0038 1 1 2 22.75 22.97 3.9101 2 0 0 23.41 35.36 3.8012 1 3 0 24.56 25.78 3.6257 -1 3 2 25.05 45.47 3.5553 -2 2 2 25.67 77.97 3.4719 -1 1 4 26.58 100.00 3.3539 2 2 0 27.18 33.23 3.2819 -2 0 4 27.35 26.69 3.2611 0 0 4 29.55 59.07 3.0238 1 3 2 30.65 30.13 2.9176 0 4 2 30.65 2.71 2.9170 0 2 4 32.27 42.58 2.7741 -1 3 4 34.23 5.32 2.6198 2 2 2 34.41 23.37 2.6066 -3 1 4 34.69 44.54 2.5855 -2 4 2 34.69 25.57 2.5858 1 1 4 35.11 13.32 2.5562 3 1 0 35.85 3.54 2.5049 2 4 0 36.29 1.07 2.4755 1 5 0 37.07 11.87 2.4251 -1 5 2 37.47 6.05 2.4002 -3 3 2 38.60 13.79 2.3322 -1 1 6 39.71 10.55 2.2694 -3 3 4 39.96 9.37 2.2557 1 3 4 40.33 3.82 2.2359 3 3 0 40.39 3.87 2.2328 -2 2 6 40.68 15.62 2.2176 1 5 2 41.52 20.57 2.1748 0 6 0 41.86 5.06 2.1578 -3 1 6 42.00 8.42 2.1507 2 4 2 42.24 8.09 2.1391 -4 0 2 42.64 6.84 2.1201 -4 0 4 42.78 7.84 2.1133 -1 5 4 42.99 2.60 2.1034 2 0 4 43.04 12.49 2.1012 3 1 2 43.47 6.31 2.0814 -1 3 6 43.88 8.20 2.0631 0 6 2 43.89 3.67 2.0626 0 2 6 44.57 6.52 2.0326 -4 2 2 44.95 14.49 2.0163 -4 2 4 45.29 9.24 2.0019 2 2 4 46.45 9.73 1.9546 -3 3 6 46.44 9.33 1.9550 4 0 0 46.94 6.01 1.9351 -2 6 2 46.99 1.85 1.9333 -3 5 2 47.54 9.60 1.9122 3 3 2 47.53 2.47 1.9124 -4 0 6 47.85 1.14 1.9006 2 6 0 48.48 6.29 1.8773 1 1 6 48.88 6.12 1.8630 -3 5 4 49.09 7.72 1.8553 1 5 4 49.40 4.39 1.8443 3 5 0 50.32 4.33 1.8129 -2 6 4 50.42 3.20 1.8093 0 6 4 50.43 10.79 1.8091 0 4 6 50.68 17.78 1.8009 -2 0 8 50.91 1.03 1.7932 -1 7 2 51.04 12.20 1.7888 -4 4 2 52.11 2.28 1.7546 -1 5 6 52.50 1.00 1.7424 -3 1 8 52.71 3.32 1.7359 -2 2 8 53.77 1.10 1.7043 1 7 2 53.59 2.47 1.7094 -5 1 4 54.00 3.66 1.6977 3 1 4 54.73 9.64 1.6766 -3 5 6 55.49 6.92 1.6555 -1 7 4 55.70 9.84 1.6497 3 5 2 56.02 1.34 1.6409 -4 0 8 56.39 4.87 1.6311 0 8 0 56.43 2.20 1.6300 -3 3 8 56.44 1.57 1.6297 -5 1 6 57.85 2.22 1.5932 3 3 4 57.93 6.49 1.5914 -4 2 8 58.31 8.80 1.5819 0 2 8 58.37 5.30 1.5804 2 2 6 59.50 2.08 1.5529 5 1 0 60.16 3.78 1.5375 0 6 6 60.29 1.49 1.5345 1 5 6 60.20 9.36 1.5366 -5 3 6 60.64 2.55 1.5266 -3 7 4 60.70 8.59 1.5250 -4 6 2 60.82 3.41 1.5224 1 7 4 61.09 1.45 1.5163 3 7 0 61.58 15.71 1.5054 2 8 0 62.85 4.82 1.4779 -5 1 8 63.15 4.34 1.4718 5 3 0 63.46 3.80 1.4653 -1 7 6 63.40 2.14 1.4666 1 1 8 63.79 1.75 1.4585 0 4 8 63.84 9.29 1.4573 2 4 6 64.01 3.44 1.4539 4 6 0 64.76 6.01 1.4390 -6 0 4 65.03 1.11 1.4335 -2 0 10 65.20 5.04 1.4302 4 0 4 65.44 1.01 1.4256 1 9 0 65.79 1.14 1.4189 -3 7 6 66.66 2.84 1.4025 3 7 2 66.78 1.15 1.4001 -2 2 10 67.33 4.61 1.3901 -5 5 6 67.50 5.35 1.3870 -2 6 8 67.62 2.11 1.3849 5 1 2 68.67 4.07 1.3662 -6 2 2 68.97 3.85 1.3610 -4 2 10 69.91 6.52 1.3450 -1 9 4 69.92 1.22 1.3448 -2 8 6 70.84 1.15 1.3296 1 7 6 70.81 1.30 1.3301 -6 0 8 71.03 3.50 1.3264 5 3 2 71.41 3.90 1.3203 -1 3 10 71.49 2.81 1.3191 2 0 8 71.91 3.68 1.3124 -2 4 10 72.39 2.23 1.3049 0 10 0 72.46 2.45 1.3038 2 6 6 73.17 7.92 1.2928 -4 8 4 73.20 1.19 1.2923 -5 5 8 73.43 6.17 1.2889 2 8 4 73.73 3.96 1.2843 -6 4 2 74.02 4.66 1.2800 -4 4 10 74.08 1.66 1.2791 0 2 10 74.15 1.11 1.2781 6 2 0 74.50 1.94 1.2731 -3 9 4 74.66 1.68 1.2706 1 9 4 75.33 1.70 1.2610 3 7 4 75.55 1.45 1.2579 -3 5 10 77.07 1.28 1.2368 -1 9 6 77.67 2.30 1.2287 5 5 2 78.04 1.14 1.2239 -1 5 10 78.91 1.17 1.2125 -2 10 4 78.68 1.46 1.2154 -6 0 10 79.01 1.76 1.2112 0 4 10 79.19 2.03 1.2089 -2 8 8 79.08 1.15 1.2103 6 4 0 79.81 1.81 1.2011 1 1 10 79.89 2.16 1.2001 -6 6 4 80.15 2.34 1.1969 -2 6 10 80.04 1.84 1.1982 4 2 6 80.30 1.61 1.1950 4 6 4 81.39 1.18 1.1818 -7 -3 6 81.46 1.78 1.1809 -7 1 8 83.01 1.63 1.1627 -5 7 8 83.53 3.55 1.1568 -4 8 8 83.85 4.25 1.1532 0 8 8 84.89 1.39 1.1417 1 11 2 84.87 3.89 1.1419 4 4 6 85.14 1.60 1.1390 -6 4 10 86.18 1.73 1.1278 2 6 8 87.35 1.27 1.1157 5 7 2 87.54 1.19 1.1138 6 4 2 87.61 2.57 1.1131 7 1 0 88.27 1.35 1.1065 3 9 4 89.45 2.68 1.0949 1 5 10 89.45 2.68 1.0949 1 5 10 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.