Prehnite Papike J J, Zoltai T American Mineralogist 52 (1967) 974-984 Ordering of tetrahedral aluminium in prehnite, Ca2(Al,Fe)[Si3AlO10](OH)2 _database_code_amcsd 0000157 CELL PARAMETERS: 4.6460 5.4830 18.4860 90.000 90.000 90.000 SPACE GROUP: Pncm X-RAY WAVELENGTH: 1.541838 Cell Volume: 470.913 Density (g/cm3): 2.894 MAX. ABS. INTENSITY / VOLUME**2: 7.029910010 RIR: 0.791 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 16.87 21.64 5.2567 0 1 1 4 19.10 29.30 4.6460 1 0 0 2 19.20 2.93 4.6215 0 0 4 2 21.41 8.72 4.1511 1 0 2 4 25.12 38.54 3.5446 1 1 0 4 25.59 100.00 3.4812 1 1 1 8 26.94 58.72 3.3096 1 1 2 8 27.22 42.22 3.2765 1 0 4 4 28.98 18.99 3.0810 0 0 6 2 29.06 88.93 3.0725 1 1 3 8 31.82 36.22 2.8126 1 1 4 8 32.66 3.84 2.7415 0 2 0 2 34.11 17.79 2.6283 0 2 2 4 34.94 28.12 2.5677 1 0 6 4 35.07 77.25 2.5587 1 1 5 8 37.81 6.24 2.3793 0 1 7 4 38.11 16.30 2.3611 1 2 0 4 38.17 27.97 2.3579 0 2 4 4 38.44 15.17 2.3421 1 2 1 8 38.72 15.22 2.3254 1 1 6 8 38.76 3.17 2.3230 2 0 0 2 38.98 10.31 2.3108 0 0 8 2 40.93 7.19 2.2048 1 2 3 8 42.55 2.60 2.1248 2 1 1 8 42.70 4.39 2.1177 1 1 7 8 43.61 15.99 2.0755 2 0 4 4 43.75 5.70 2.0690 1 0 8 4 44.22 9.52 2.0481 0 2 6 4 44.86 1.65 2.0207 2 1 3 8 45.59 2.73 1.9899 1 2 5 8 46.80 11.05 1.9411 2 1 4 8 46.94 14.12 1.9357 1 1 8 8 47.26 2.66 1.9235 0 1 9 4 49.21 10.79 1.8514 2 1 5 8 49.29 2.23 1.8486 0 0 10 2 51.42 15.33 1.7772 1 1 9 8 51.57 47.81 1.7723 2 2 0 4 51.74 4.56 1.7668 0 2 8 4 51.95 2.92 1.7602 1 2 7 8 52.05 8.30 1.7570 2 1 6 8 52.20 3.87 1.7522 0 3 3 4 53.34 3.40 1.7176 1 0 10 4 53.91 10.71 1.7008 1 3 0 4 54.15 5.12 1.6936 1 3 1 8 54.89 1.36 1.6727 1 3 2 8 55.27 24.43 1.6621 2 1 7 8 55.66 1.87 1.6515 1 2 8 8 56.10 6.54 1.6395 1 3 3 8 56.11 1.17 1.6391 1 1 10 8 56.14 3.18 1.6384 0 3 5 4 56.14 5.86 1.6383 2 0 8 4 57.76 2.03 1.5961 1 3 4 8 58.83 7.23 1.5697 2 1 8 8 59.86 22.52 1.5451 1 3 5 8 60.06 6.94 1.5405 0 0 12 2 60.24 7.23 1.5363 2 2 6 8 60.39 11.19 1.5327 0 2 10 4 61.72 9.36 1.5029 0 3 7 4 62.36 1.21 1.4890 1 3 6 8 62.52 3.85 1.4855 3 1 1 8 63.64 4.20 1.4622 1 0 12 4 63.96 5.21 1.4555 1 2 10 8 64.31 5.75 1.4486 3 1 3 8 64.41 6.78 1.4465 2 0 10 4 65.25 1.86 1.4299 1 3 7 8 65.84 2.43 1.4184 3 1 4 8 66.14 4.03 1.4128 1 1 12 8 66.49 17.58 1.4063 2 2 8 8 67.80 13.48 1.3823 3 1 5 8 68.39 2.09 1.3717 2 3 4 8 68.44 7.33 1.3707 0 4 0 2 68.75 1.37 1.3654 0 3 9 4 69.74 2.64 1.3484 3 2 0 4 69.95 1.89 1.3448 3 2 1 8 70.06 3.39 1.3430 0 2 12 4 71.38 1.10 1.3215 2 1 11 8 71.48 2.97 1.3198 1 1 13 8 71.80 1.19 1.3147 1 4 0 4 72.10 6.55 1.3100 1 3 9 8 72.62 2.19 1.3019 2 3 6 8 72.88 1.04 1.2979 3 1 7 8 73.11 6.70 1.2944 3 2 4 8 73.39 5.74 1.2902 1 2 12 8 73.63 1.82 1.2865 3 0 8 4 73.68 1.15 1.2858 1 4 3 8 73.81 2.04 1.2839 2 0 12 4 74.11 3.49 1.2793 2 2 10 8 75.13 2.22 1.2645 1 4 4 8 75.98 3.09 1.2525 3 1 8 8 77.08 3.41 1.2374 1 1 14 8 77.23 4.62 1.2353 3 2 6 8 78.39 1.83 1.2199 2 3 8 8 78.52 1.17 1.2181 1 2 13 8 79.22 2.06 1.2092 1 4 6 8 79.45 3.82 1.2063 3 1 9 8 79.76 3.75 1.2024 0 1 15 4 80.99 1.85 1.1871 3 0 10 4 81.54 5.25 1.1805 2 4 0 4 81.66 3.53 1.1791 3 3 1 8 81.67 6.51 1.1789 0 4 8 4 82.34 3.39 1.1710 2 4 2 8 82.90 2.53 1.1646 3 2 8 8 82.95 3.87 1.1640 1 1 15 8 83.07 1.41 1.1627 2 2 12 8 83.17 3.00 1.1615 4 0 0 2 83.27 3.30 1.1604 3 3 3 8 83.97 1.40 1.1524 4 0 2 4 84.75 5.37 1.1438 2 4 4 8 84.94 3.54 1.1418 1 3 12 8 86.47 3.73 1.1255 3 3 5 8 88.64 1.67 1.1034 4 1 4 8 88.66 1.01 1.1032 3 3 6 8 88.74 1.20 1.1024 2 4 6 8 89.93 2.19 1.0909 1 3 13 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.