Er2Si2O7 Smolin Y I, Shepelev Y F Acta Crystallographica B26 (1970) 484-492 The crystal structures of the rare earth pyrosilicates _database_code_amcsd 0009371 CELL PARAMETERS: 4.6830 5.5560 10.7900 90.000 90.000 96.000 SPACE GROUP: P2_1/b X-RAY WAVELENGTH: 1.541838 Cell Volume: 279.204 Density (g/cm3): 5.978 MAX. ABS. INTENSITY / VOLUME**2: 109.4397746 RIR: 5.961 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 16.43 13.82 5.3950 0 0 2 2 18.04 32.07 4.9182 0 1 1 4 19.06 39.77 4.6573 1 0 0 2 20.77 27.20 4.2760 1 0 1 4 23.04 11.46 3.8602 0 1 2 4 25.08 1.91 3.5506 1 -1 1 4 25.26 8.06 3.5254 1 0 2 4 27.58 55.16 3.2348 1 1 1 4 28.94 100.00 3.0848 1 -1 2 4 29.64 31.25 3.0143 0 1 3 4 32.41 3.99 2.7628 0 2 0 2 33.21 20.34 2.6975 0 0 4 2 33.48 31.92 2.6764 0 2 1 4 34.51 2.65 2.5991 1 -1 3 4 36.42 27.56 2.4672 1 1 3 4 37.01 13.55 2.4293 -1 2 1 4 37.09 5.67 2.4241 0 1 4 4 38.57 12.30 2.3342 1 0 4 4 39.59 17.31 2.2763 2 0 1 4 39.63 16.43 2.2741 1 2 0 2 40.54 3.87 2.2252 1 2 1 4 41.19 16.71 2.1918 1 -1 4 4 41.20 3.67 2.1910 0 2 3 4 41.32 2.21 2.1848 2 -1 1 4 43.17 3.90 2.0956 1 2 2 4 43.92 18.85 2.0617 2 -1 2 4 44.20 1.79 2.0491 -1 2 3 4 44.57 1.83 2.0328 2 1 1 4 46.37 8.79 1.9580 1 0 5 4 46.46 4.64 1.9547 2 0 3 4 47.02 7.03 1.9325 2 1 2 4 47.08 1.56 1.9301 0 2 4 4 47.99 1.41 1.8959 2 -1 3 4 48.42 10.10 1.8800 -2 2 0 2 49.19 3.29 1.8521 2 -2 1 4 50.77 5.93 1.7983 0 0 6 2 50.90 7.61 1.7940 2 1 3 4 51.47 1.31 1.7753 2 -2 2 4 52.15 5.40 1.7539 -1 3 1 4 52.50 12.65 1.7431 0 3 2 4 52.64 5.81 1.7387 1 2 4 4 53.29 5.38 1.7192 2 -1 4 4 53.59 1.42 1.7100 0 1 6 4 53.91 14.62 1.7007 0 2 5 4 54.09 10.65 1.6954 2 2 0 2 54.34 4.50 1.6882 -1 3 2 4 54.71 5.66 1.6776 1 0 6 4 56.00 4.75 1.6421 2 1 4 4 56.24 1.07 1.6355 1 3 1 4 56.39 9.51 1.6317 -1 2 5 4 56.74 5.00 1.6223 1 -1 6 4 57.87 8.05 1.5935 -1 3 3 4 58.29 11.69 1.5828 2 0 5 4 58.33 8.68 1.5819 1 3 2 4 59.01 1.96 1.5654 1 2 5 4 59.55 1.07 1.5524 3 0 0 2 59.98 6.94 1.5424 2 -2 4 4 60.22 4.30 1.5366 3 0 1 4 60.88 2.89 1.5216 3 -1 1 4 60.90 5.52 1.5211 0 3 4 4 61.44 2.43 1.5092 -2 3 1 4 61.53 1.52 1.5072 0 2 6 4 61.71 1.21 1.5032 1 3 3 4 62.56 4.16 1.4847 0 1 7 4 62.58 1.20 1.4842 -1 3 4 4 62.87 1.32 1.4782 3 -1 2 4 64.97 6.02 1.4354 2 2 4 4 65.86 3.91 1.4182 -3 2 0 2 65.89 1.20 1.4175 2 -2 5 4 66.11 5.41 1.4134 3 -1 3 4 66.26 4.44 1.4106 1 2 6 4 66.27 1.73 1.4104 1 3 4 4 66.54 9.64 1.4052 3 1 2 4 66.64 4.62 1.4034 -2 3 3 4 66.65 7.21 1.4032 1 1 7 4 66.82 1.13 1.4001 2 -1 6 4 67.85 1.96 1.3814 0 4 0 2 68.40 1.06 1.3716 3 -2 2 4 68.48 1.52 1.3702 0 4 1 4 68.76 1.39 1.3652 2 3 1 4 68.84 3.60 1.3638 -1 4 0 2 72.08 2.16 1.3103 0 1 8 4 72.77 2.03 1.2995 2 -2 6 4 73.56 1.05 1.2875 3 2 1 4 73.62 1.02 1.2867 0 3 6 4 73.70 2.84 1.2854 2 3 3 4 74.00 2.19 1.2809 3 1 4 4 74.13 2.40 1.2791 1 4 1 4 74.78 3.07 1.2695 1 -1 8 4 75.43 2.76 1.2602 3 0 5 4 75.78 2.54 1.2553 3 -2 4 4 76.40 1.06 1.2466 -2 4 0 2 77.00 1.80 1.2384 -2 4 1 4 77.16 1.32 1.2363 2 1 7 4 77.35 2.68 1.2336 2 2 6 4 77.66 2.33 1.2295 0 4 4 4 78.32 2.35 1.2208 3 -3 2 4 78.56 2.31 1.2176 1 3 6 4 78.60 2.21 1.2171 -1 4 4 4 81.29 1.99 1.1835 3 -3 3 4 81.99 1.05 1.1751 3 0 6 4 82.29 1.57 1.1716 0 1 9 4 82.90 1.70 1.1645 -1 3 7 4 82.92 2.53 1.1643 4 0 0 2 83.00 1.54 1.1634 0 4 5 4 83.81 3.31 1.1542 2 -1 8 4 85.88 1.32 1.1316 -2 4 4 4 85.91 1.47 1.1314 3 1 6 4 85.96 2.35 1.1308 2 4 1 4 86.03 1.96 1.1300 2 1 8 4 86.60 1.79 1.1241 3 3 1 4 87.62 2.90 1.1136 3 -2 6 4 87.83 1.98 1.1115 3 2 5 4 88.02 1.44 1.1096 4 -2 1 4 88.22 2.40 1.1076 4 -1 3 4 88.37 3.36 1.1061 1 4 5 4 89.01 1.80 1.0998 0 2 9 4 89.05 1.18 1.0994 0 5 1 4 89.72 1.48 1.0929 4 1 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.