Sphaerobertrandite Pekov I V, Chukanov N V, Larsen A O, Merlino S, Pasero M, Pushcharovsky D Y, Ivaldi G, Zadov A E, Grishin V G, Asheim A, Tafto J, Chistyakova N I European Journal of Mineralogy 15 (2003) 157-166 Sphaerobertrandite, Be3SiO4(OH)2: new data, crystal structure and genesis _database_code_amcsd 0006960 CELL PARAMETERS: 5.0820 4.6400 17.6960 90.000 106.130 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 400.853 Density (g/cm3): 2.504 MAX. ABS. INTENSITY / VOLUME**2: 3.345759525 RIR: 0.435 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.41 2.64 8.4997 0 0 2 2 18.17 100.00 4.8819 1 0 0 2 18.27 10.28 4.8559 -1 0 2 2 19.83 53.13 4.4762 0 1 1 4 20.90 66.71 4.2498 0 0 4 2 21.82 10.71 4.0727 0 1 2 4 23.40 50.71 3.8017 1 0 2 2 23.63 11.23 3.7650 -1 0 4 2 24.80 1.75 3.5900 0 1 3 4 26.00 9.83 3.4265 -1 1 1 4 26.57 14.91 3.3547 -1 1 2 4 28.01 15.92 3.1853 1 1 1 4 28.14 98.19 3.1708 -1 1 3 4 28.48 14.03 3.1340 0 1 4 4 30.40 8.01 2.9407 1 1 2 4 30.58 16.19 2.9236 -1 1 4 4 31.52 81.48 2.8386 1 0 4 2 31.81 4.85 2.8131 -1 0 6 2 32.65 42.55 2.7425 0 1 5 4 33.49 4.15 2.6761 1 1 3 4 33.71 2.64 2.6590 -1 1 5 4 35.32 43.32 2.5409 -2 0 2 2 36.82 5.78 2.4410 2 0 0 2 37.03 6.64 2.4279 -2 0 4 2 37.13 3.41 2.4214 1 1 4 4 37.18 3.51 2.4181 0 1 6 4 37.38 35.00 2.4055 -1 1 6 4 38.82 82.89 2.3200 0 2 0 2 40.48 15.18 2.2286 -2 1 2 4 40.79 3.92 2.2121 -2 1 1 4 40.88 4.15 2.2073 -2 1 3 4 41.04 3.94 2.1995 1 0 6 2 41.21 8.71 2.1906 1 1 5 4 41.22 15.29 2.1903 2 0 2 2 41.36 21.59 2.1829 -1 0 8 2 41.49 18.04 2.1765 -1 1 7 4 41.59 6.38 2.1715 -2 0 6 2 41.99 2.38 2.1516 0 1 7 4 42.85 3.05 2.1105 -1 2 1 4 43.17 2.60 2.0954 1 2 0 4 43.51 1.30 2.0800 2 1 1 4 43.78 7.32 2.0680 -2 1 5 4 44.17 12.29 2.0502 1 2 1 4 44.26 3.91 2.0463 -1 2 3 4 44.49 3.73 2.0363 0 2 4 4 45.65 5.33 1.9875 1 1 6 4 45.82 1.59 1.9804 1 2 2 4 45.95 3.94 1.9752 -1 1 8 4 45.95 2.09 1.9751 -1 2 4 4 46.15 17.89 1.9668 -2 1 6 4 47.04 9.90 1.9320 0 1 8 4 47.44 1.60 1.9163 0 2 5 4 47.85 2.30 1.9008 2 0 4 2 48.06 2.26 1.8933 1 2 3 4 48.22 1.70 1.8872 -1 2 5 4 48.35 2.64 1.8825 -2 0 8 2 48.66 2.29 1.8712 2 1 3 4 49.07 2.13 1.8566 -2 1 7 4 50.83 8.79 1.7964 1 2 4 4 51.03 2.17 1.7898 -1 2 6 4 51.45 7.21 1.7761 1 0 8 2 51.80 1.24 1.7649 -1 0 10 2 52.29 4.26 1.7494 0 1 9 4 53.48 6.97 1.7133 -2 2 2 4 53.74 1.25 1.7057 -2 2 1 4 53.81 1.50 1.7035 -2 2 3 4 54.31 6.18 1.6892 -1 2 7 4 54.38 1.21 1.6872 -3 0 2 2 55.72 2.12 1.6496 -1 1 10 4 55.74 3.04 1.6490 2 1 5 4 56.16 4.06 1.6379 2 0 6 2 56.19 1.63 1.6370 -2 2 5 4 56.26 4.32 1.6350 -2 1 9 4 56.55 11.65 1.6273 3 0 0 2 57.76 1.34 1.5962 0 1 10 4 57.76 1.43 1.5962 1 2 6 4 57.90 5.52 1.5926 2 2 2 4 57.96 2.74 1.5912 -3 1 3 4 58.01 4.59 1.5898 -1 2 8 4 58.18 4.32 1.5856 -3 1 2 4 58.19 3.04 1.5854 -2 2 6 4 59.17 5.06 1.5614 -3 1 5 4 59.89 6.24 1.5445 2 1 6 4 60.34 5.37 1.5340 2 2 3 4 60.65 14.60 1.5268 1 1 9 4 60.86 6.89 1.5221 3 0 2 2 60.88 1.94 1.5217 0 3 2 4 61.39 6.69 1.5103 -3 0 8 2 62.10 1.28 1.4947 3 1 1 4 62.52 1.92 1.4857 -3 1 7 4 63.08 4.89 1.4737 -1 3 2 4 63.89 1.42 1.4570 -1 3 3 4 64.07 3.80 1.4534 0 3 4 4 64.93 1.35 1.4361 -3 1 8 4 65.00 5.00 1.4349 -2 1 11 4 65.11 2.60 1.4326 1 3 2 4 65.21 5.15 1.4307 -1 3 4 4 65.80 1.11 1.4193 2 0 8 2 65.94 11.71 1.4166 0 0 12 2 66.27 2.99 1.4103 1 2 8 4 66.47 1.87 1.4066 -2 0 12 2 67.06 2.77 1.3957 3 0 4 2 67.06 1.07 1.3956 -2 2 9 4 67.75 5.18 1.3830 -3 0 10 2 69.17 1.57 1.3581 1 3 4 4 69.20 2.05 1.3576 0 3 6 4 69.33 17.17 1.3553 -1 3 6 4 70.71 3.42 1.3323 3 2 0 4 71.40 8.62 1.3212 -2 3 2 4 71.90 1.41 1.3131 1 3 5 4 74.40 1.42 1.2751 2 1 9 4 74.53 2.03 1.2732 2 2 7 4 74.57 2.71 1.2726 3 2 2 4 74.72 3.19 1.2704 -4 0 4 2 74.79 2.65 1.2694 1 0 12 2 75.05 2.10 1.2657 -3 2 8 4 75.08 3.84 1.2652 1 3 6 4 75.10 1.06 1.2649 -2 1 13 4 75.21 3.26 1.2634 -1 0 14 2 75.31 2.63 1.2620 -1 3 8 4 75.46 13.27 1.2598 -2 3 6 4 75.80 8.85 1.2550 -3 0 12 2 76.12 7.10 1.2505 0 3 8 4 76.70 1.70 1.2425 2 0 10 2 77.19 4.39 1.2358 3 2 3 4 77.46 2.56 1.2322 -2 0 14 2 77.76 1.02 1.2282 -3 2 9 4 78.15 4.06 1.2230 -4 1 3 4 78.34 2.07 1.2205 4 0 0 2 78.85 3.08 1.2140 -4 0 8 2 79.23 4.35 1.2090 0 2 12 4 79.95 2.07 1.2000 -4 1 1 4 80.27 1.24 1.1960 3 2 4 4 80.92 2.23 1.1880 -3 2 10 4 82.69 3.57 1.1670 3 1 7 4 83.02 2.22 1.1632 -1 3 10 4 83.62 1.49 1.1564 -3 1 13 4 83.63 5.51 1.1562 4 1 1 4 84.47 6.78 1.1469 1 1 13 4 84.73 1.59 1.1440 0 3 10 4 84.90 2.84 1.1421 -1 1 15 4 85.09 5.14 1.1401 -3 3 2 4 86.56 8.19 1.1245 2 3 6 4 86.86 1.28 1.1213 1 4 1 4 86.89 1.12 1.1211 3 3 0 4 87.62 1.09 1.1136 1 2 12 4 88.02 1.85 1.1096 -1 2 14 4 88.60 4.33 1.1038 -3 2 12 4 89.47 1.04 1.0953 2 2 10 4 89.49 1.06 1.0951 4 0 4 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.