Seidite-(Ce) Ferraris G, Belluso E, Gula A, Soboleva S V, Khomyakov A P The Canadian Mineralogist 41 (2003) 1183-1192 The crystal structure of seidite-(Ce), Na4(Ce,Sr)2{Ti(OH)2(Si8O18)}(O,OH,F)4.5H2O, a modular microporous titanosilicate of the rhodesite group _database_code_amcsd 0005884 CELL PARAMETERS: 24.6100 7.2300 14.5300 90.000 94.600 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 2577.000 Density (g/cm3): 2.720 MAX. ABS. INTENSITY / VOLUME**2: 18.43042069 RIR: 2.206 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.21 100.00 12.2654 2 0 0 2 12.22 17.38 7.2416 0 0 2 2 12.76 30.11 6.9351 1 1 0 4 14.03 16.45 6.3109 -1 1 1 4 14.28 34.44 6.2004 1 1 1 4 14.44 2.87 6.1327 4 0 0 2 16.37 1.11 5.4164 3 1 0 4 17.17 13.93 5.1640 -3 1 1 4 17.79 2.88 4.9870 3 1 1 4 17.91 8.20 4.9529 1 1 2 4 18.19 2.51 4.8768 -4 0 2 2 21.74 27.69 4.0885 6 0 0 2 21.89 2.79 4.0597 5 1 0 4 22.20 3.35 4.0050 -1 1 3 4 22.35 6.27 3.9782 -5 1 1 4 23.14 2.82 3.8433 5 1 1 4 24.03 4.36 3.7030 -3 1 3 4 24.59 16.12 3.6208 0 0 4 2 24.63 2.35 3.6150 0 2 0 2 25.08 1.21 3.5508 -2 0 4 2 25.69 25.35 3.4675 2 2 0 4 25.86 2.36 3.4450 5 1 2 4 26.29 1.21 3.3897 -2 2 1 4 27.58 2.18 3.2344 0 2 2 4 27.59 17.46 3.2335 -4 0 4 2 27.76 1.56 3.2140 -5 1 3 4 28.06 1.15 3.1802 1 1 4 4 28.28 4.75 3.1555 -2 2 2 4 28.30 7.53 3.1535 7 1 0 4 28.53 9.77 3.1286 -7 1 1 4 28.66 3.10 3.1142 4 2 0 4 28.92 5.15 3.0869 -3 1 4 4 29.12 2.26 3.0663 8 0 0 2 29.42 3.58 3.0361 7 1 1 4 29.58 1.44 3.0195 4 2 1 4 29.64 1.57 3.0139 4 0 4 2 29.68 5.02 3.0103 5 1 3 4 30.42 1.80 2.9389 3 1 4 4 30.79 3.91 2.9041 -4 2 2 4 30.90 3.47 2.8937 0 2 3 4 33.08 1.38 2.7082 6 2 0 4 33.25 4.85 2.6947 -1 1 5 4 34.26 3.28 2.6173 5 1 4 4 34.32 3.76 2.6127 -3 1 5 4 34.38 10.51 2.6088 6 0 4 2 34.92 1.59 2.5697 4 2 3 4 35.08 5.18 2.5582 0 2 4 4 35.09 2.91 2.5570 7 1 3 4 35.27 2.56 2.5446 -9 1 1 4 35.44 17.44 2.5332 -2 2 4 4 35.93 4.57 2.4997 3 1 5 4 36.02 4.47 2.4935 6 2 2 4 36.22 8.74 2.4802 9 1 1 4 36.91 10.84 2.4356 -5 1 5 4 37.25 1.14 2.4139 0 0 6 2 37.98 3.06 2.3692 -1 3 1 4 38.08 6.75 2.3632 1 3 1 4 38.50 11.58 2.3384 8 2 0 4 38.67 1.93 2.3284 -9 1 3 4 38.99 2.98 2.3102 -4 0 6 2 39.39 3.35 2.2873 5 1 5 4 39.49 1.98 2.2822 -1 3 2 4 39.73 1.18 2.2688 10 0 2 2 39.82 1.50 2.2638 1 1 6 4 40.03 2.60 2.2526 8 0 4 2 40.52 5.63 2.2261 -6 2 4 4 41.28 1.88 2.1872 4 0 6 2 41.71 1.22 2.1654 -4 2 5 4 41.93 4.24 2.1547 -1 3 3 4 42.01 1.26 2.1505 -5 3 1 4 42.20 1.08 2.1413 1 3 3 4 42.27 1.46 2.1381 -5 1 6 4 42.40 5.62 2.1320 -11 1 1 4 42.47 1.32 2.1284 5 3 1 4 42.74 1.66 2.1154 6 2 4 4 42.84 2.68 2.1110 -10 0 4 2 43.33 1.05 2.0881 -11 1 2 4 44.64 1.45 2.0298 10 2 0 4 45.11 1.74 2.0099 -12 0 2 2 45.17 3.59 2.0072 -11 1 3 4 45.28 2.09 2.0025 -2 2 6 4 45.61 3.82 1.9891 -10 2 2 4 46.06 3.57 1.9705 1 1 7 4 46.31 1.65 1.9604 2 2 6 4 46.44 4.48 1.9554 7 3 1 4 46.61 1.97 1.9485 5 3 3 4 46.89 1.64 1.9376 -7 3 2 4 47.30 2.38 1.9217 10 2 2 4 47.56 1.74 1.9118 8 2 4 4 47.89 2.13 1.8995 3 1 7 4 48.06 1.97 1.8932 7 3 2 4 48.66 2.41 1.8713 4 2 6 4 49.16 1.71 1.8533 7 1 6 4 49.21 1.70 1.8515 -6 2 6 4 49.35 1.30 1.8467 9 1 5 4 49.91 2.06 1.8271 -3 3 5 4 50.48 2.58 1.8078 7 3 3 4 50.49 4.29 1.8075 0 4 0 2 50.84 1.73 1.7958 5 1 7 4 51.24 2.81 1.7830 -11 1 5 4 51.33 2.03 1.7800 9 3 1 4 51.47 1.54 1.7754 -4 0 8 2 51.62 1.19 1.7706 2 0 8 2 51.85 2.55 1.7633 -5 3 5 4 52.76 1.76 1.7352 -14 0 2 2 53.19 3.64 1.7220 12 0 4 2 53.78 1.01 1.7045 5 3 5 4 54.11 1.72 1.6948 -4 4 2 4 55.27 1.10 1.6620 -11 1 6 4 55.97 1.09 1.6430 -12 2 4 4 56.94 2.47 1.6172 0 4 4 4 57.44 2.33 1.6042 7 3 5 4 57.54 1.63 1.6017 -13 1 5 4 58.27 1.06 1.5833 5 3 6 4 58.50 2.60 1.5777 -4 4 4 4 58.54 1.88 1.5767 14 2 0 4 59.93 4.10 1.5434 -6 2 8 4 60.37 2.22 1.5332 16 0 0 2 60.46 1.10 1.5312 -5 1 9 4 62.51 1.04 1.4857 6 4 4 4 63.29 1.35 1.4694 5 3 7 4 63.59 1.36 1.4631 5 1 9 4 65.58 3.04 1.4236 -4 4 6 4 66.35 1.93 1.4089 14 2 4 4 66.94 1.08 1.3978 17 1 1 4 69.46 1.12 1.3532 15 1 5 4 71.09 1.19 1.3261 -15 3 3 4 71.85 1.07 1.3139 -15 1 7 4 72.30 1.34 1.3069 3 3 9 4 72.33 1.22 1.3063 -6 2 10 4 72.81 1.09 1.2990 -1 1 11 4 73.84 1.29 1.2834 16 2 4 4 76.93 1.31 1.2393 11 1 9 4 77.47 1.39 1.2321 -18 2 4 4 81.20 1.13 1.1846 -2 6 2 4 82.50 1.54 1.1692 16 4 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.