Tunellite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050283 Burns P C, Hawthorne F C The Canadian Mineralogist 32 (1994) 895-902 Hydrogen bonding in tunellite CELL PARAMETERS: 14.39000 8.213000 9.934000 90.00000 114.0300 90.00000 SPACE GROUP: P2_1/a X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.96 5.97 9.0820 0 0 1 12.93 43.98 6.9639 1 1 0 13.25 17.78 6.7918 -2 0 1 13.68 100.00 6.5733 2 0 0 14.48 31.70 6.2077 -1 1 1 17.49 42.15 5.1314 2 1 0 18.92 19.53 4.7425 -2 0 2 19.76 11.48 4.5410 0 0 2 19.83 16.76 4.5242 2 0 1 21.73 1.10 4.1293 -3 1 1 21.85 2.03 4.1067 -2 1 2 21.85 1.44 4.1052 0 2 0 22.58 3.47 3.9737 0 1 2 22.90 12.19 3.9186 1 2 0 23.21 20.72 3.8660 3 1 0 23.82 1.59 3.7675 -1 2 1 23.99 9.43 3.7408 0 2 1 24.99 10.80 3.5916 -4 0 1 25.55 20.72 3.5133 -2 2 1 25.79 20.61 3.4819 2 2 0 25.82 2.40 3.4773 1 1 2 26.45 5.42 3.3959 -4 0 2 27.33 2.10 3.2867 4 0 0 28.25 8.17 3.1812 2 0 2 28.34 2.90 3.1716 3 1 1 28.43 16.30 3.1618 -1 2 2 28.87 3.32 3.1136 -3 2 1 28.96 11.69 3.1039 -2 2 2 29.47 8.81 3.0513 4 1 0 29.53 11.28 3.0453 0 2 2 29.58 10.23 3.0402 2 2 1 29.71 9.69 3.0273 0 0 3 29.74 15.46 3.0241 -1 1 3 30.02 10.26 2.9960 3 2 0 30.33 1.31 2.9663 2 1 2 30.49 11.08 2.9505 -3 1 3 31.06 8.94 2.8972 -3 2 2 31.20 14.28 2.8849 -4 0 3 31.69 18.09 2.8404 0 1 3 32.12 8.51 2.8038 1 2 2 32.71 4.07 2.7537 4 0 1 33.10 7.35 2.7218 -4 1 3 33.34 3.39 2.7031 -4 2 1 33.43 10.89 2.6955 -5 1 1 33.64 1.44 2.6793 1 3 0 33.73 2.60 2.6723 -5 1 2 34.29 1.44 2.6295 -1 3 1 34.41 19.71 2.6204 0 3 1 34.54 3.25 2.6108 4 1 1 35.17 10.78 2.5657 4 2 0 35.55 6.66 2.5385 -2 3 1 35.73 2.64 2.5266 2 3 0 35.91 6.99 2.5141 1 3 1 36.06 12.22 2.5041 5 1 0 36.44 5.04 2.4787 -2 0 4 36.88 1.30 2.4494 -5 1 3 37.08 5.19 2.4365 0 2 3 37.85 7.69 2.3887 -6 0 2 38.08 2.49 2.3747 -3 3 1 38.14 2.16 2.3713 -4 0 4 38.32 2.16 2.3603 -4 2 3 38.30 1.13 2.3613 -3 1 4 38.34 4.29 2.3593 -6 0 1 38.87 1.45 2.3279 -5 2 2 38.98 10.09 2.3213 3 3 0 39.18 1.91 2.3099 -1 1 4 39.23 4.89 2.3072 2 1 3 39.47 1.43 2.2936 -6 1 2 39.75 2.44 2.2782 -4 1 4 39.89 1.43 2.2705 0 0 4 39.94 10.57 2.2676 -6 1 1 39.96 9.42 2.2668 1 2 3 40.04 6.05 2.2621 4 0 2 40.60 2.04 2.2323 3 2 2 40.94 6.96 2.2141 5 2 0 41.11 13.53 2.2055 5 1 1 41.39 1.78 2.1911 6 0 0 41.56 2.26 2.1825 -6 1 3 41.67 1.72 2.1768 -4 3 1 41.69 6.82 2.1761 -5 2 3 42.34 10.21 2.1439 -5 1 4 42.39 2.58 2.1413 3 3 1 42.61 3.19 2.1309 -4 3 2 42.80 29.00 2.1219 -2 2 4 42.97 2.92 2.1136 -3 2 4 43.09 1.86 2.1082 -2 3 3 43.19 13.42 2.1031 4 3 0 43.77 11.24 2.0765 -1 2 4 43.81 3.13 2.0747 2 3 2 43.82 4.60 2.0745 2 2 3 44.04 2.06 2.0646 -6 2 2 44.29 7.95 2.0533 -4 2 4 44.29 7.66 2.0534 3 1 3 44.49 1.13 2.0446 -6 0 4 44.74 6.84 2.0337 1 1 4 44.87 13.51 2.0280 1 4 0 45.85 1.86 1.9869 0 2 4 45.91 1.49 1.9840 -6 1 4 45.95 3.92 1.9825 -6 2 3 45.98 2.76 1.9812 4 2 2 46.13 1.71 1.9752 -5 3 1 46.36 1.06 1.9660 -5 3 2 46.67 1.37 1.9534 -5 2 4 46.67 3.04 1.9535 1 4 1 46.75 5.45 1.9503 -7 1 1 46.93 6.75 1.9434 -7 1 3 46.98 4.33 1.9412 4 3 1 47.19 5.69 1.9330 6 2 0 47.23 3.58 1.9314 -3 1 5 47.55 2.56 1.9193 2 0 4 47.86 1.12 1.9075 3 3 2 47.97 3.25 1.9034 6 1 1 48.15 8.03 1.8965 -1 4 2 48.44 8.99 1.8859 -3 4 1 49.19 1.29 1.8588 3 4 0 49.96 1.25 1.8318 -3 3 4 50.32 4.33 1.8194 -7 1 4 50.41 1.09 1.8164 0 0 5 50.67 2.45 1.8075 -1 3 4 50.71 2.25 1.8062 2 3 3 50.80 1.65 1.8032 -6 0 5 50.79 3.10 1.8036 -7 2 1 50.91 1.38 1.7996 -6 3 2 51.14 1.29 1.7921 -4 3 4 51.29 3.17 1.7870 -6 3 1 52.06 1.21 1.7625 3 4 1 52.10 1.27 1.7612 -6 1 5 52.54 2.54 1.7474 0 3 4 52.58 1.28 1.7459 -8 0 1 52.63 3.41 1.7444 -6 3 3 53.11 1.56 1.7297 -1 2 5 53.37 1.11 1.7220 -5 2 5 53.81 1.32 1.7089 3 1 4 55.09 1.24 1.6721 1 1 5 55.49 1.03 1.6608 -5 4 2 55.58 1.97 1.6583 -7 1 5 55.77 3.17 1.6530 -4 0 6 56.15 3.52 1.6429 5 1 3 56.33 2.80 1.6380 -6 3 4 56.81 1.44 1.6250 3 4 2 57.08 1.72 1.6180 5 4 0 57.88 1.22 1.5976 -2 3 5 58.05 1.55 1.5931 2 5 0 58.11 1.35 1.5917 6 3 1 58.15 1.19 1.5906 4 0 4 58.68 4.94 1.5775 -3 4 4 59.18 1.46 1.5653 -7 2 5 59.26 1.20 1.5633 -9 1 3 59.30 2.41 1.5623 -9 1 2 59.86 5.54 1.5491 4 3 3 60.18 1.20 1.5416 -7 3 4 60.56 1.61 1.5329 -3 2 6 61.83 2.05 1.5042 7 1 2 62.41 1.18 1.4917 -7 1 6 62.44 3.35 1.4910 -8 3 3 63.03 1.10 1.4783 -4 5 2 63.39 3.96 1.4707 -2 5 3 64.12 2.50 1.4557 3 1 5 64.30 1.12 1.4521 -7 4 2 64.79 1.38 1.4421 -9 1 5 65.02 1.00 1.4376 -10 0 3 65.94 1.10 1.4197 8 2 1 65.92 1.34 1.4202 0 2 6 66.11 1.01 1.4164 5 4 2 66.43 1.79 1.4104 4 5 1 67.40 1.10 1.3925 -5 1 7 68.05 1.12 1.3807 -7 4 4 68.27 1.08 1.3766 2 3 5 68.82 1.41 1.3670 -8 3 5 69.17 1.01 1.3609 -8 2 6 69.16 1.37 1.3610 1 6 0 69.26 1.12 1.3594 2 0 6 69.81 1.27 1.3500 -4 5 4 69.94 1.89 1.3478 -6 5 1 70.39 1.54 1.3402 9 1 1 70.97 1.37 1.3306 0 5 4 70.98 2.12 1.3305 3 4 4 72.21 1.27 1.3107 -10 2 1 72.16 1.11 1.3115 -2 2 7 72.99 1.52 1.2986 5 4 3 73.74 1.47 1.2872 -3 4 6 74.20 1.83 1.2803 -6 5 4 75.60 1.11 1.2600 -4 3 7 75.72 1.17 1.2582 -9 4 3 76.47 2.11 1.2477 2 5 4 77.08 1.89 1.2393 -4 0 8 77.17 1.02 1.2381 -11 1 1 77.29 1.85 1.2365 4 5 3 77.86 1.12 1.2288 1 1 7 80.26 1.18 1.1980 -2 6 4 86.09 1.09 1.1308 -7 4 7 86.09 1.09 1.1308 -7 4 7 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.