Beryllonite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060299 Giuseppetti G, Tadini C Tschermaks Mineralogische und Petrographische Mitteilungen 20 (1973) 1-12 Refinment of the crystal structure of beryllonite CELL PARAMETERS: 8.178000 7.818000 14.11400 90.00000 90.00000 90.00000 SPACE GROUP: P2_1/n X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 15.75 4.22 5.6304 1 1 0 20.13 17.55 4.4117 -1 1 2 20.13 14.37 4.4117 1 1 2 21.85 5.75 4.0686 2 0 0 21.72 7.47 4.0917 1 0 3 21.72 6.84 4.0917 -1 0 3 22.81 52.68 3.8994 0 2 0 23.66 1.02 3.7602 0 2 1 24.68 45.09 3.6072 2 1 0 24.57 39.75 3.6233 1 1 3 24.57 45.05 3.6233 -1 1 3 25.48 8.75 3.4962 -2 1 1 25.48 16.14 3.4962 2 1 1 27.74 2.90 3.2160 -2 1 2 27.74 3.61 3.2160 2 1 2 27.60 2.93 3.2312 0 1 4 29.75 7.86 3.0031 1 1 4 29.75 4.12 3.0031 -1 1 4 31.17 6.04 2.8691 -2 1 3 31.17 1.45 2.8691 2 1 3 31.78 48.88 2.8152 2 2 0 31.69 48.84 2.8228 -1 2 3 31.69 51.16 2.8228 1 2 3 33.63 2.22 2.6642 3 0 1 33.63 6.89 2.6642 -3 0 1 33.49 1.42 2.6750 -2 0 4 33.49 5.74 2.6750 2 0 4 33.41 2.81 2.6815 1 0 5 33.41 4.35 2.6815 -1 0 5 34.26 1.08 2.6170 2 2 2 35.94 2.53 2.4984 1 2 4 38.23 13.82 2.3534 3 0 3 38.23 14.84 2.3534 -3 0 3 38.01 16.24 2.3668 0 0 6 38.49 5.81 2.3382 1 3 2 39.54 4.01 2.2786 0 3 3 40.00 20.11 2.2531 3 1 3 40.00 19.23 2.2531 -3 1 3 39.79 18.93 2.2648 0 1 6 40.50 2.98 2.2267 3 2 0 40.41 5.51 2.2315 -2 1 5 41.02 2.88 2.1998 -3 2 1 40.90 1.16 2.2059 -2 2 4 40.90 2.54 2.2059 2 2 4 40.83 1.62 2.2095 -1 2 5 41.20 4.06 2.1906 2 3 0 41.13 3.27 2.1942 -1 3 3 41.13 3.79 2.1942 1 3 3 41.37 5.08 2.1819 1 1 6 41.70 1.03 2.1650 2 3 1 41.70 7.96 2.1650 -2 3 1 43.20 3.75 2.0933 2 3 2 43.20 3.44 2.0933 -2 3 2 43.11 4.13 2.0974 0 3 4 44.52 3.71 2.0343 4 0 0 44.26 3.16 2.0458 -2 0 6 44.26 5.16 2.0458 2 0 6 44.60 3.41 2.0310 -1 3 4 44.97 2.51 2.0149 3 2 3 44.97 1.16 2.0149 -3 2 3 44.78 2.07 2.0233 0 2 6 45.34 3.88 1.9994 -2 2 5 45.34 1.37 1.9994 2 2 5 45.61 2.50 1.9881 2 3 3 46.09 3.63 1.9684 4 1 0 45.84 3.17 1.9789 -2 1 6 45.84 3.60 1.9789 2 1 6 46.41 1.33 1.9556 -4 0 2 46.41 1.29 1.9556 4 0 2 46.26 1.36 1.9616 3 0 5 46.26 1.08 1.9616 -3 0 5 46.56 2.25 1.9498 4 1 1 46.09 2.14 1.9685 -1 0 7 46.56 21.80 1.9497 0 4 0 48.22 1.44 1.8864 3 2 4 50.17 2.21 1.8176 -4 1 3 50.59 3.00 1.8036 4 2 0 50.35 2.18 1.8116 -2 2 6 50.35 2.78 1.8116 2 2 6 50.70 1.27 1.7997 0 2 7 52.42 2.87 1.7447 3 3 3 52.42 2.80 1.7447 -3 3 3 52.25 2.06 1.7501 0 3 6 54.87 1.45 1.6725 -1 4 4 55.34 1.27 1.6592 -3 3 4 57.50 1.27 1.6021 4 3 0 57.28 1.10 1.6077 2 3 6 57.28 1.60 1.6077 -2 3 6 57.90 1.81 1.5920 4 3 1 58.25 1.68 1.5831 3 4 0 58.50 1.08 1.5769 1 4 5 59.43 2.15 1.5545 -5 1 2 60.78 1.26 1.5230 1 5 1 60.77 1.14 1.5234 0 5 2 61.03 1.81 1.5175 4 3 3 61.37 4.13 1.5099 5 1 3 61.21 4.00 1.5134 -4 1 6 60.95 3.43 1.5193 1 1 9 61.75 2.39 1.5014 -3 4 3 61.75 2.56 1.5014 3 4 3 61.60 2.70 1.5049 0 4 6 61.94 1.53 1.4974 -1 5 2 61.94 1.70 1.4974 1 5 2 62.05 1.20 1.4950 2 4 5 62.35 2.33 1.4885 2 3 7 63.20 1.37 1.4706 -3 3 6 63.88 1.36 1.4564 2 5 0 63.83 1.88 1.4575 -1 5 3 63.83 1.25 1.4575 1 5 3 64.26 1.74 1.4488 2 5 1 64.26 1.80 1.4488 -2 5 1 64.42 2.59 1.4456 -2 1 9 64.56 2.52 1.4427 -1 3 8 65.13 3.56 1.4316 5 2 3 65.13 2.92 1.4316 -5 2 3 64.97 3.92 1.4346 4 2 6 64.97 3.44 1.4346 -4 2 6 64.72 2.95 1.4396 -1 2 9 64.72 4.16 1.4396 1 2 9 66.43 1.65 1.4065 -1 5 4 66.43 1.51 1.4065 1 5 4 67.03 1.86 1.3954 -4 3 5 69.24 6.01 1.3562 6 0 0 69.36 1.62 1.3541 -5 3 2 68.79 5.77 1.3639 -3 0 9 68.79 6.63 1.3639 3 0 9 70.67 1.07 1.3321 6 0 2 70.15 1.27 1.3408 2 0 10 71.15 1.68 1.3243 5 3 3 71.01 1.37 1.3267 -4 3 6 70.76 1.61 1.3307 1 3 9 73.06 2.77 1.2944 0 6 1 72.96 1.63 1.2960 -2 5 5 73.63 1.03 1.2858 5 3 4 73.95 2.59 1.2809 6 2 0 73.61 1.27 1.2860 1 5 6 73.52 2.00 1.2874 3 2 9 73.52 2.88 1.2874 -3 2 9 75.58 1.28 1.2573 4 3 7 77.34 1.78 1.2331 4 5 1 81.27 1.20 1.1831 2 5 7 81.40 1.28 1.1815 -3 4 8 81.80 1.14 1.1767 6 0 6 81.24 1.01 1.1834 0 0 12 86.68 1.28 1.1226 -5 5 1 86.43 1.56 1.1251 3 5 7 86.35 1.06 1.1259 -2 5 8 86.35 1.03 1.1259 2 5 8 87.19 1.61 1.1173 7 1 3 86.82 1.98 1.1211 -5 1 9 86.50 2.21 1.1244 2 1 12 87.58 1.56 1.1133 6 4 0 87.69 1.68 1.1122 -5 5 2 87.16 1.77 1.1176 3 4 9 87.16 1.48 1.1176 -3 4 9 87.60 1.04 1.1131 3 6 4 87.91 1.09 1.1099 6 4 1 87.91 1.09 1.1099 6 4 1 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.