Poldervaartite Heller L Acta Crystallographica 5 (1952) 724-728 The structure of dicalcium silicate alpha-hydrate Locality: synthetic Ca2SiO3OHOH _database_code_amcsd 0009148 CELL PARAMETERS: 9.3400 9.2200 10.6100 90.000 90.000 90.000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 Cell Volume: 913.678 Density (g/cm3): 2.736 MAX. ABS. INTENSITY / VOLUME**2: 6.753435506 RIR: 0.804 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.88 77.25 5.5806 1 1 1 8 16.71 42.66 5.3050 0 0 2 2 19.24 1.23 4.6129 1 0 2 4 19.25 7.90 4.6100 0 2 0 2 21.01 19.10 4.2281 0 2 1 4 21.54 5.67 4.1253 1 1 2 8 22.93 80.31 3.8778 2 1 1 8 23.09 40.44 3.8518 1 2 1 8 25.41 100.00 3.5053 2 0 2 4 25.60 7.27 3.4797 0 2 2 4 27.18 28.95 3.2808 2 2 0 4 27.22 13.18 3.2765 2 1 2 8 27.35 17.57 3.2608 1 2 2 8 28.48 6.58 3.1343 2 2 1 8 28.67 1.73 3.1132 1 1 3 8 31.48 7.55 2.8419 3 1 1 8 31.79 3.69 2.8147 1 3 1 8 31.89 60.15 2.8060 0 2 3 4 32.08 22.91 2.7903 2 2 2 8 33.23 11.48 2.6962 2 1 3 8 33.34 9.32 2.6874 1 2 3 8 33.79 2.41 2.6525 0 0 4 2 34.80 1.51 2.5780 3 1 2 8 34.95 6.07 2.5673 2 3 0 4 36.54 8.89 2.4592 1 1 4 8 37.39 29.26 2.4052 2 2 3 8 38.81 17.52 2.3202 3 2 2 8 38.98 14.17 2.3109 2 3 2 8 39.05 5.08 2.3064 2 0 4 4 39.79 1.60 2.2652 3 1 3 8 39.82 10.06 2.2635 4 1 0 4 40.03 4.80 2.2525 0 4 1 4 40.31 6.51 2.2375 2 1 4 8 40.40 18.05 2.2325 1 2 4 8 40.76 17.69 2.2137 4 1 1 8 41.23 12.33 2.1897 1 4 1 8 42.29 5.91 2.1371 4 0 2 4 42.77 22.02 2.1141 0 4 2 4 43.41 7.22 2.0844 3 2 3 8 43.44 34.37 2.0830 4 2 0 4 43.47 1.73 2.0819 4 1 2 8 43.56 62.37 2.0776 2 3 3 8 43.80 14.90 2.0669 2 4 0 4 43.91 17.05 2.0619 1 4 2 8 44.32 6.08 2.0440 4 2 1 8 44.89 6.57 2.0191 3 0 4 4 44.89 7.56 2.0190 1 1 5 8 46.24 1.33 1.9632 1 3 4 8 46.86 18.41 1.9389 4 2 2 8 47.19 7.12 1.9259 2 4 2 8 47.70 1.81 1.9065 4 1 3 8 48.12 3.06 1.8911 1 4 3 8 48.12 16.88 1.8908 2 1 5 8 48.20 5.30 1.8878 1 2 5 8 48.97 1.45 1.8602 3 3 3 8 49.27 2.10 1.8495 3 2 4 8 49.79 12.21 1.8313 4 3 1 8 50.59 4.29 1.8041 5 1 1 8 51.19 1.47 1.7845 2 4 3 8 51.23 6.58 1.7833 1 5 1 8 51.27 18.74 1.7818 2 2 5 8 51.69 4.67 1.7683 0 0 6 2 52.13 1.34 1.7546 4 3 2 8 52.19 1.41 1.7527 4 0 4 4 52.31 3.30 1.7490 3 4 2 8 52.60 3.55 1.7399 0 4 4 4 52.68 1.54 1.7375 1 0 6 4 52.90 3.74 1.7306 5 1 2 8 53.17 3.40 1.7226 3 1 5 8 53.20 3.99 1.7218 4 1 4 8 53.42 6.82 1.7151 2 5 0 4 53.52 1.78 1.7123 1 5 2 8 53.58 2.36 1.7104 1 4 4 8 53.64 3.85 1.7087 5 2 1 8 55.57 4.24 1.6537 2 0 6 4 55.67 1.92 1.6510 0 2 6 4 55.87 6.43 1.6457 4 3 3 8 56.04 3.79 1.6410 3 4 3 8 56.24 3.04 1.6356 2 3 5 8 56.38 1.06 1.6320 2 5 2 8 56.44 1.78 1.6304 2 4 4 8 56.54 3.40 1.6278 2 1 6 8 56.61 4.04 1.6258 1 2 6 8 58.47 2.22 1.5785 5 3 1 8 58.85 2.49 1.5691 3 5 1 8 59.37 4.66 1.5567 6 0 0 2 59.94 1.66 1.5432 2 5 3 8 60.18 2.80 1.5376 3 0 6 4 60.22 4.55 1.5367 0 6 0 2 60.84 1.35 1.5225 4 3 4 8 60.92 1.58 1.5208 0 6 1 4 61.01 3.01 1.5188 3 4 4 8 61.55 1.44 1.5067 5 1 4 8 62.14 1.02 1.4937 6 0 2 4 62.40 2.87 1.4881 4 4 3 8 62.48 1.25 1.4865 4 2 5 8 62.75 4.99 1.4806 2 4 5 8 62.93 5.23 1.4768 1 1 7 8 63.03 1.19 1.4749 6 2 0 4 63.05 1.86 1.4745 6 1 2 8 64.38 2.64 1.4471 4 5 0 4 64.43 1.62 1.4461 2 6 1 8 64.72 2.84 1.4403 2 5 4 8 64.74 9.37 1.4399 0 2 7 4 64.84 4.83 1.4379 5 4 1 8 66.30 1.98 1.4097 4 0 6 4 66.39 9.26 1.4080 6 1 3 8 66.43 1.71 1.4074 2 6 2 8 67.07 3.22 1.3955 3 4 5 8 67.17 1.32 1.3936 1 6 3 8 67.18 4.46 1.3935 4 1 6 8 67.44 1.55 1.3887 6 3 0 4 68.09 5.64 1.3769 6 3 1 8 68.69 6.30 1.3665 3 6 1 8 68.99 2.16 1.3612 6 2 3 8 69.69 1.57 1.3493 2 6 3 8 70.94 2.30 1.3285 6 1 4 8 71.90 1.84 1.3131 1 0 8 4 72.59 1.23 1.3024 5 5 1 8 72.88 2.79 1.2978 4 4 5 8 74.13 1.18 1.2791 3 4 6 8 74.44 2.85 1.2746 0 2 8 4 74.58 1.10 1.2724 7 2 1 8 74.91 1.02 1.2677 2 7 0 4 75.00 1.63 1.2664 0 4 7 4 75.53 1.27 1.2587 2 7 1 8 76.55 6.33 1.2446 0 6 5 4 77.10 1.28 1.2371 5 2 6 8 77.35 1.04 1.2337 1 6 5 8 77.54 3.66 1.2312 2 5 6 8 77.60 1.15 1.2303 6 3 4 8 79.42 1.38 1.2066 4 6 3 8 79.74 1.76 1.2026 4 4 6 8 81.62 1.56 1.1795 3 2 8 8 81.64 1.28 1.1794 5 6 1 8 82.02 1.28 1.1748 4 3 7 8 82.17 1.92 1.1731 3 4 7 8 82.65 1.88 1.1675 5 1 7 8 83.13 4.07 1.1620 6 3 5 8 83.24 3.48 1.1607 6 5 2 8 83.31 1.00 1.1599 0 6 6 4 83.37 1.12 1.1592 6 1 6 8 83.70 1.50 1.1554 4 6 4 8 83.83 2.43 1.1540 7 2 4 8 83.90 3.09 1.1532 4 0 8 4 84.23 1.03 1.1495 0 4 8 4 84.37 3.71 1.1480 7 4 1 8 85.05 2.33 1.1406 4 7 1 8 85.08 4.18 1.1402 8 0 2 4 85.36 1.53 1.1372 1 8 1 8 86.39 1.84 1.1262 0 8 2 4 87.00 3.23 1.1199 4 5 6 8 87.10 1.67 1.1189 2 8 0 4 87.18 1.13 1.1181 1 8 2 8 87.36 1.23 1.1162 2 4 8 8 87.66 2.34 1.1132 4 4 7 8 88.03 2.15 1.1094 2 2 9 8 89.42 1.65 1.0958 0 8 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.