Wickenburgite Lam A E, Groat L A The Canadian Mineralogist 32 (1994) 525-532 The crystal structure of wickenburgite, Pb3CaAl[AlSi10O27](H2O)3, a sheet structure Sample: UMAN refinement _database_code_amcsd 0005382 CELL PARAMETERS: 8.5460 8.5460 20.1680 90.000 90.000 120.000 SPACE GROUP: P31c X-RAY WAVELENGTH: 1.541838 Cell Volume: 1275.614 Density (g/cm3): 3.890 MAX. ABS. INTENSITY / VOLUME**2: 89.88538832 RIR: 7.523 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.77 100.00 10.0840 0 0 2 1 11.96 4.09 7.4011 1 0 0 6 14.85 8.52 5.9665 1 0 2 6 17.59 5.76 5.0420 0 0 4 1 20.79 7.53 4.2730 1 1 0 3 21.32 2.65 4.1669 1 0 4 6 22.60 30.11 3.9344 2 -1 2 3 22.60 25.71 3.9344 1 1 2 3 24.05 2.30 3.7005 2 0 0 6 24.46 1.71 3.6398 2 0 1 6 25.14 1.01 3.5418 1 0 5 6 25.64 3.29 3.4740 2 0 2 6 26.52 7.58 3.3613 0 0 6 1 27.36 40.51 3.2598 1 1 4 3 27.36 24.22 3.2598 2 -1 4 3 27.51 6.70 3.2418 2 0 3 6 29.18 2.75 3.0605 1 0 6 6 29.95 9.43 2.9833 2 0 4 6 31.99 16.26 2.7973 2 1 0 6 32.31 3.10 2.7708 3 -1 1 6 32.31 2.15 2.7708 2 1 1 6 32.84 8.26 2.7268 2 0 5 6 33.24 5.02 2.6955 3 -1 2 6 33.24 6.17 2.6955 2 1 2 6 33.93 12.91 2.6419 1 1 6 3 33.93 7.40 2.6419 2 -1 6 3 35.61 4.82 2.5210 0 0 8 1 36.10 1.89 2.4881 2 0 6 6 36.42 9.39 2.4670 3 0 0 6 36.74 4.07 2.4461 3 -1 4 6 36.74 11.83 2.4461 2 1 4 6 37.53 4.82 2.3963 3 0 2 6 37.70 1.65 2.3864 1 0 8 6 38.89 1.45 2.3160 3 0 3 6 39.19 1.16 2.2987 3 -1 5 6 40.72 3.03 2.2160 3 0 4 6 41.59 5.53 2.1713 2 -1 8 3 41.59 3.18 2.1713 1 1 8 3 42.02 2.18 2.1502 3 -1 6 6 42.02 4.59 2.1502 2 1 6 6 42.30 2.28 2.1365 2 2 0 3 43.29 1.43 2.0901 4 -2 2 3 43.29 1.63 2.0901 2 2 2 3 43.43 1.08 2.0835 2 0 8 6 44.12 2.55 2.0527 3 1 0 6 44.36 3.70 2.0421 4 -1 1 6 44.36 3.23 2.0421 3 1 1 6 44.95 2.94 2.0168 0 0 10 1 45.07 2.92 2.0114 3 1 2 6 45.07 2.25 2.0114 4 -1 2 6 45.61 4.95 1.9888 3 0 6 6 46.24 2.20 1.9632 4 -1 3 6 46.24 2.16 1.9632 3 1 3 6 47.43 1.09 1.9168 2 0 9 6 47.84 1.96 1.9012 4 -1 4 6 48.62 4.10 1.8727 3 -1 8 6 48.62 1.99 1.8727 2 1 8 6 49.25 1.75 1.8503 4 0 0 6 49.85 1.20 1.8294 4 -1 5 6 50.01 2.43 1.8239 1 1 10 3 50.01 3.54 1.8239 2 -1 10 3 50.13 4.46 1.8199 4 0 2 6 50.62 1.56 1.8031 4 -2 6 3 51.61 1.25 1.7709 2 0 10 6 51.85 6.15 1.7632 3 0 8 6 52.22 1.56 1.7519 4 -1 6 6 52.22 1.94 1.7519 3 1 6 6 52.70 4.72 1.7370 4 0 4 6 54.01 2.92 1.6979 3 2 0 6 54.83 2.94 1.6743 3 2 2 6 54.83 2.01 1.6743 5 -2 2 6 54.92 1.31 1.6718 4 -1 7 6 54.92 1.26 1.6718 3 1 7 6 55.85 1.25 1.6462 5 -2 3 6 55.85 1.80 1.6462 3 2 3 6 56.23 3.12 1.6359 3 -1 10 6 56.23 3.13 1.6359 2 1 10 6 56.80 3.20 1.6209 4 0 6 6 57.02 1.58 1.6150 4 1 0 6 57.25 3.06 1.6091 3 2 4 6 57.25 2.94 1.6091 5 -2 4 6 57.94 1.58 1.5918 3 1 8 6 59.03 1.70 1.5649 3 2 5 6 59.03 1.92 1.5649 5 -2 5 6 59.06 2.79 1.5640 1 1 12 3 59.06 1.86 1.5640 2 -1 12 3 59.17 2.58 1.5614 3 0 10 6 61.15 1.83 1.5155 5 -2 6 6 61.15 2.17 1.5155 3 2 6 6 61.24 1.81 1.5136 3 1 9 6 62.24 2.07 1.4916 4 0 8 6 62.96 1.05 1.4762 5 0 1 6 64.46 1.37 1.4456 5 0 3 6 66.38 1.82 1.4083 5 -2 8 6 66.38 1.35 1.4083 3 2 8 6 67.08 1.24 1.3953 6 -2 1 6 67.39 1.96 1.3896 5 0 5 6 68.77 1.93 1.3651 1 1 14 3 70.90 1.80 1.3293 5 1 0 6 71.60 1.09 1.3179 6 -1 2 6 71.60 1.47 1.3179 5 1 2 6 72.81 1.37 1.2989 5 -2 10 6 73.71 1.40 1.2853 6 -1 4 6 74.02 1.30 1.2807 3 -1 14 6 75.57 1.12 1.2582 4 2 7 6 76.59 1.24 1.2441 4 0 12 6 76.59 1.26 1.2440 3 0 14 6 77.17 1.19 1.2361 6 -1 6 6 85.41 1.19 1.1367 4 0 14 6 87.99 1.24 1.1099 5 1 10 6 89.14 1.18 1.0985 3 2 14 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.