Colemanite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050102 Burns P C, Hawthorne F C The Canadian Mineralogist 31 (1993) 297-304 Hydrogen bonding in colemanite: An X-ray and structure-energy study CELL PARAMETERS: 8.712000 11.24700 6.091000 90.00000 110.1200 90.00000 SPACE GROUP: P2_1/a X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 13.39 6.06 6.6225 1 1 0 15.50 15.70 5.7246 0 0 1 15.77 44.49 5.6282 0 2 0 17.45 18.54 5.0879 -1 1 1 19.15 6.19 4.6385 1 2 0 21.72 4.89 4.0949 2 0 0 22.17 4.50 4.0134 0 2 1 22.21 43.98 4.0062 -1 2 1 23.13 50.07 3.8482 2 1 0 23.21 3.40 3.8348 1 1 1 23.33 3.08 3.8160 -2 1 1 26.94 5.51 3.3112 2 2 0 27.11 58.00 3.2907 -2 2 1 28.45 2.11 3.1381 0 3 1 28.49 100.00 3.1347 -1 3 1 30.92 41.37 2.8925 2 0 1 31.26 10.36 2.8623 0 0 2 31.81 16.94 2.8141 0 4 0 31.95 5.73 2.8015 2 1 1 32.10 13.01 2.7893 -3 1 1 32.39 17.55 2.7645 -2 1 2 32.43 4.55 2.7614 1 3 1 32.52 7.44 2.7544 -2 3 1 33.68 4.52 2.6614 1 4 0 33.79 6.95 2.6530 3 1 0 35.01 6.74 2.5632 -3 2 1 35.18 28.56 2.5513 0 2 2 35.29 38.86 2.5439 -2 2 2 35.55 3.53 2.5254 0 4 1 35.58 5.99 2.5237 -1 4 1 37.55 20.62 2.3957 1 1 2 37.74 13.93 2.3835 -3 1 2 38.03 6.80 2.3661 -1 3 2 38.96 23.20 2.3121 -2 4 1 39.33 1.60 2.2908 2 3 1 39.45 1.70 2.2842 -3 3 1 40.88 10.43 2.2075 3 3 0 41.60 5.91 2.1708 1 5 0 42.06 10.29 2.1484 3 1 1 42.21 34.12 2.1408 -4 1 1 43.18 1.84 2.0951 0 5 1 43.20 20.44 2.0941 -1 5 1 43.78 19.42 2.0678 -1 4 2 44.12 5.00 2.0525 1 3 2 44.23 10.15 2.0475 4 0 0 44.29 1.34 2.0448 -3 3 2 44.41 2.42 2.0399 3 2 1 44.42 7.43 2.0394 2 0 2 44.68 2.32 2.0281 -4 0 2 44.97 17.48 2.0156 -2 0 3 45.00 5.65 2.0144 4 1 0 45.04 6.37 2.0125 -3 4 1 45.18 11.62 2.0067 0 4 2 45.18 34.72 2.0067 2 1 2 45.66 1.61 1.9866 -1 1 3 45.73 3.30 1.9840 -2 1 3 46.00 31.57 1.9728 2 5 0 46.05 13.73 1.9710 1 5 1 46.11 2.33 1.9684 -2 5 1 46.33 8.37 1.9594 3 4 0 47.41 3.50 1.9174 2 2 2 47.87 2.21 1.8998 -1 2 3 47.94 23.04 1.8976 -2 2 3 48.12 4.54 1.8905 3 3 1 48.27 14.80 1.8853 -4 3 1 48.37 1.92 1.8814 0 1 3 48.52 1.20 1.8761 0 6 0 48.56 1.80 1.8747 -3 1 3 49.29 5.61 1.8486 1 4 2 49.86 1.19 1.8287 1 6 0 50.38 3.99 1.8110 -1 5 2 50.96 1.78 1.7918 2 3 2 51.19 4.43 1.7842 -4 3 2 51.23 4.17 1.7828 0 6 1 51.25 3.20 1.7821 -1 6 1 51.40 2.90 1.7775 -1 3 3 51.46 1.50 1.7756 -2 3 3 51.52 1.93 1.7735 -3 5 1 51.72 1.71 1.7671 -2 5 2 52.37 2.49 1.7466 4 0 1 52.69 6.31 1.7369 3 5 0 52.99 3.10 1.7277 3 4 1 53.05 4.16 1.7259 4 1 1 53.12 3.88 1.7236 -4 4 1 53.15 2.87 1.7227 -4 0 3 53.22 1.46 1.7208 -5 1 1 53.73 1.47 1.7056 2 6 0 53.77 7.45 1.7044 1 6 1 53.83 1.13 1.7028 -2 6 1 53.82 1.83 1.7029 -4 1 3 53.89 3.47 1.7009 0 3 3 55.04 1.83 1.6681 4 2 1 55.20 2.11 1.6635 -5 2 1 55.39 2.21 1.6583 1 5 2 55.52 1.51 1.6548 1 2 3 55.54 3.28 1.6542 -3 5 2 55.79 1.00 1.6473 -4 2 3 56.11 1.19 1.6386 -2 4 3 56.69 5.69 1.6233 -5 2 2 58.41 2.25 1.5795 -5 3 1 58.58 3.59 1.5754 -3 4 3 58.72 1.28 1.5718 -3 6 1 58.83 1.41 1.5693 3 5 1 58.84 3.45 1.5691 0 6 2 58.98 3.75 1.5656 -4 3 3 59.73 1.37 1.5477 -1 7 1 60.73 1.02 1.5245 2 1 3 60.74 3.25 1.5243 -2 0 4 61.17 1.85 1.5147 4 5 0 61.71 2.13 1.5028 -1 5 3 62.02 2.05 1.4960 1 7 1 62.56 5.33 1.4842 2 2 3 62.57 1.39 1.4840 -3 1 4 62.92 1.12 1.4766 -5 2 3 63.02 5.40 1.4746 1 4 3 63.84 1.86 1.4577 3 4 2 64.11 5.09 1.4522 -5 4 2 64.40 1.66 1.4463 4 0 2 65.16 1.97 1.4311 0 0 4 65.33 1.34 1.4279 -6 1 2 65.51 1.60 1.4244 3 6 1 65.90 2.50 1.4169 -5 3 3 66.76 1.36 1.4007 -2 7 2 67.18 1.45 1.3929 -1 3 4 67.32 2.40 1.3905 -3 3 4 67.77 2.75 1.3823 -4 2 4 67.90 2.80 1.3800 4 5 1 68.04 2.46 1.3774 -5 5 1 68.23 1.19 1.3741 -1 6 3 68.27 1.31 1.3732 -2 6 3 68.57 2.40 1.3681 -4 5 3 69.11 3.72 1.3587 3 5 2 70.06 3.69 1.3425 -3 7 2 70.07 5.64 1.3424 -6 1 3 70.81 1.92 1.3301 1 8 1 71.03 2.15 1.3265 6 2 0 71.77 1.31 1.3147 -6 2 3 73.61 1.69 1.2863 4 4 2 73.68 1.27 1.2852 -6 4 1 73.85 1.33 1.2827 6 3 0 75.04 1.02 1.2653 2 8 1 75.40 2.05 1.2600 -4 7 2 75.57 1.53 1.2577 -1 7 3 75.62 2.39 1.2570 1 3 4 76.36 1.43 1.2466 -3 5 4 77.11 1.89 1.2364 1 9 0 77.19 2.40 1.2353 6 0 1 77.30 1.37 1.2339 5 6 0 78.20 1.05 1.2219 0 9 1 78.43 2.41 1.2188 -3 8 2 78.49 1.85 1.2181 5 5 1 78.93 1.78 1.2123 -6 1 4 79.38 1.06 1.2066 6 2 1 79.47 1.38 1.2055 1 4 4 80.24 1.52 1.1958 1 9 1 80.78 2.01 1.1891 -2 2 5 80.82 1.05 1.1887 -4 0 5 81.16 1.73 1.1846 5 3 2 81.35 1.04 1.1823 -4 8 1 82.10 2.64 1.1733 6 3 1 82.25 1.29 1.1716 -1 6 4 83.28 3.59 1.1597 -6 3 4 83.60 1.54 1.1561 -4 8 2 84.35 1.34 1.1477 1 5 4 84.56 1.48 1.1454 4 6 2 84.60 3.28 1.1449 0 0 5 85.14 2.56 1.1390 0 1 5 87.34 1.41 1.1159 -3 4 5 87.64 1.50 1.1129 -3 9 2 89.44 1.82 1.0951 0 3 5 89.44 1.82 1.0951 0 3 5 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.