Pb2Al2Si2O9 Dorsam G, Liebscher A, Wunder B, Franz G American Mineralogist 93 (2008) 573-583 Crystal structures of synthetic melanotekite (Pb2Fe2Si2O9), kentrolite (Pb2Mn2Si2O9), and the aluminum analogue (Pb2Al2Si2O9) _database_code_amcsd 0004537 CELL PARAMETERS: 6.8981 10.6906 9.7413 90.000 90.000 90.000 SPACE GROUP: Pbcn X-RAY WAVELENGTH: 1.541838 Cell Volume: 718.370 Density (g/cm3): 6.180 MAX. ABS. INTENSITY / VOLUME**2: 69.16471358 RIR: 3.644 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.29 11.35 5.7962 1 1 0 4 16.58 72.31 5.3453 0 2 0 2 17.81 14.05 4.9811 1 1 1 8 18.21 56.47 4.8706 0 0 2 2 18.94 2.10 4.6862 0 2 1 4 22.34 6.42 3.9788 1 0 2 4 22.94 11.00 3.8763 1 2 1 8 23.86 7.37 3.7289 1 1 2 8 24.73 63.71 3.6002 0 2 2 4 25.83 36.40 3.4490 2 0 0 2 27.96 4.20 3.1917 1 2 2 8 28.19 67.26 3.1660 1 3 0 4 28.70 58.04 3.1106 2 1 1 8 29.67 7.98 3.0110 1 3 1 8 30.85 30.82 2.8981 2 2 0 4 31.58 100.00 2.8329 1 1 3 8 31.79 51.09 2.8148 2 0 2 4 32.23 23.26 2.7778 2 2 1 8 32.26 27.80 2.7752 0 2 3 4 32.90 1.32 2.7220 2 1 2 8 33.77 79.97 2.6545 1 3 2 8 34.81 12.89 2.5774 0 4 1 4 34.85 2.07 2.5746 1 2 3 8 36.06 22.31 2.4906 2 2 2 8 36.91 6.51 2.4353 0 0 4 2 37.24 13.34 2.4144 1 4 1 8 37.44 9.18 2.4018 2 3 1 8 38.42 1.83 2.3431 0 4 2 4 39.02 5.95 2.3084 2 1 3 8 39.23 11.69 2.2964 1 0 4 4 39.76 10.22 2.2668 1 3 3 8 40.11 1.80 2.2480 3 1 0 4 40.16 1.11 2.2452 1 1 4 8 40.67 2.20 2.2186 1 4 2 8 40.85 1.37 2.2088 2 3 2 8 41.21 3.65 2.1904 3 1 1 8 41.78 7.23 2.1622 2 2 3 8 42.80 2.26 2.1126 2 4 0 4 42.86 4.08 2.1099 1 2 4 8 43.52 8.09 2.0793 3 0 2 4 43.85 3.10 2.0646 2 4 1 8 43.86 20.92 2.0643 3 2 1 8 43.87 15.86 2.0635 0 4 3 4 44.36 26.06 2.0423 1 5 0 4 44.38 1.88 2.0411 3 1 2 8 45.60 3.78 1.9894 2 0 4 4 46.07 1.41 1.9701 2 3 3 8 46.88 2.12 1.9381 2 4 2 8 46.88 9.33 1.9379 3 2 2 8 47.03 4.97 1.9321 3 3 0 4 47.08 2.93 1.9303 1 3 4 8 48.32 24.98 1.8834 1 5 2 8 48.85 1.15 1.8645 2 2 4 8 49.30 8.72 1.8483 3 1 3 8 49.35 30.27 1.8467 1 1 5 8 49.82 8.09 1.8305 0 2 5 4 50.84 18.05 1.7959 3 3 2 8 51.27 2.35 1.7818 0 6 0 2 51.61 17.45 1.7708 2 4 3 8 51.62 3.74 1.7706 3 2 3 8 52.69 8.41 1.7370 2 3 4 8 53.11 2.00 1.7245 4 0 0 2 53.40 20.19 1.7158 3 4 1 8 53.85 6.18 1.7026 2 5 2 8 53.98 2.65 1.6987 1 6 1 8 54.73 19.41 1.6771 4 1 1 8 54.87 4.26 1.6733 0 6 2 4 54.92 10.17 1.6719 3 0 4 4 55.33 3.04 1.6604 3 3 3 8 55.37 10.70 1.6593 1 3 5 8 56.70 1.59 1.6235 0 0 6 2 56.95 13.74 1.6169 2 2 5 8 57.78 8.86 1.5957 3 2 4 8 58.29 6.18 1.5830 2 6 0 4 58.64 18.65 1.5744 0 4 5 4 58.99 4.41 1.5658 3 5 0 4 59.03 1.45 1.5649 1 5 4 8 59.15 7.53 1.5621 0 6 3 4 60.26 5.60 1.5358 3 4 3 8 60.38 6.04 1.5330 4 3 1 8 61.50 8.02 1.5078 4 1 3 8 62.26 8.53 1.4911 1 7 0 4 62.29 1.73 1.4907 3 5 2 8 62.83 5.96 1.4790 4 3 2 8 63.15 5.69 1.4723 3 1 5 8 63.92 6.49 1.4565 2 5 4 8 65.13 9.87 1.4322 2 4 5 8 65.46 4.97 1.4258 1 7 2 8 65.61 6.90 1.4229 2 6 3 8 65.95 1.82 1.4164 2 2 6 8 66.43 1.42 1.4074 4 0 4 4 66.80 1.84 1.4005 4 3 3 8 67.08 1.97 1.3954 4 1 4 8 67.15 6.26 1.3939 3 6 1 8 67.43 1.11 1.3889 4 4 2 8 67.79 2.32 1.3823 2 7 1 8 69.17 3.33 1.3581 2 3 6 8 69.35 4.64 1.3551 1 7 3 8 69.46 9.14 1.3532 1 1 7 8 69.84 2.75 1.3467 0 2 7 4 70.46 1.71 1.3363 0 8 0 2 71.01 2.75 1.3274 5 0 2 4 71.02 1.86 1.3273 2 6 4 8 71.08 4.46 1.3263 3 0 6 4 71.25 4.90 1.3235 5 2 1 8 71.79 4.59 1.3148 0 6 5 4 72.16 6.63 1.3090 4 3 4 8 73.13 3.16 1.2941 4 5 2 8 73.26 2.48 1.2921 3 6 3 8 73.48 2.94 1.2887 0 8 2 4 73.51 2.18 1.2883 5 2 2 8 73.58 4.56 1.2872 3 2 6 8 74.48 1.35 1.2740 1 3 7 8 74.63 1.14 1.2717 1 7 4 8 74.69 1.83 1.2709 1 5 6 8 76.44 2.34 1.2461 2 8 0 4 77.22 1.49 1.2354 5 2 3 8 77.30 1.76 1.2343 0 4 7 4 77.56 2.11 1.2309 3 7 2 8 77.73 3.93 1.2286 2 6 5 8 78.44 1.69 1.2192 3 6 4 8 78.66 8.37 1.2163 5 4 1 8 79.04 2.52 1.2114 2 7 4 8 79.10 2.61 1.2107 2 5 6 8 79.38 3.59 1.2072 2 8 2 8 79.92 3.49 1.2004 5 0 4 4 80.98 2.96 1.1872 0 2 8 4 81.21 2.25 1.1845 3 7 3 8 81.24 4.34 1.1841 1 7 5 8 81.31 2.77 1.1832 3 1 7 8 81.96 6.44 1.1756 4 5 4 8 82.33 5.08 1.1712 5 2 4 8 83.06 1.52 1.1627 4 4 5 8 83.10 1.30 1.1623 1 9 1 8 83.11 4.81 1.1621 2 4 7 8 83.12 1.07 1.1621 3 2 7 8 84.35 1.43 1.1482 2 0 8 4 84.47 3.04 1.1469 5 4 3 8 85.43 3.45 1.1365 1 3 8 8 85.52 4.00 1.1355 4 7 1 8 85.54 6.86 1.1353 6 1 1 8 86.59 1.38 1.1242 3 8 2 8 86.74 1.86 1.1226 2 2 8 8 86.80 4.53 1.1220 4 3 6 8 87.41 2.64 1.1157 2 9 1 8 87.67 1.57 1.1131 4 7 2 8 88.86 4.13 1.1012 1 9 3 8 89.32 1.83 1.0967 0 6 7 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.