Portlandite Desgranges L, Grebille D, Calvarin g, Chevrier G, Floquet N, Niepce J Acta Crystallographica B49 (1993) 812-817 Hydrogen thermal motion in calcium hydroxide: Ca (O H)2 _cod_database_code 1001787 _database_code_amcsd 0009876 CELL PARAMETERS: 3.5890 3.5890 4.9110 90.000 90.000 120.000 SPACE GROUP: P-3m1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 54.783 Density (g/cm3): 2.245 MAX. ABS. INTENSITY / VOLUME**2: 24.53854487 RIR: 3.558 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.06 63.09 4.9110 0 0 1 2 28.72 17.22 3.1082 1 0 0 6 34.14 97.32 2.6264 1 0 1 6 34.14 2.68 2.6264 0 1 1 6 47.17 25.11 1.9268 1 0 2 6 47.17 18.83 1.9268 0 1 2 6 50.88 28.48 1.7945 1 1 0 6 54.44 15.87 1.6855 1 1 1 12 56.19 1.35 1.6370 0 0 3 2 59.48 2.24 1.5541 2 0 0 6 62.71 10.63 1.4817 0 2 1 6 64.29 1.13 1.4488 1 1 2 12 64.32 1.37 1.4484 1 0 3 6 64.32 10.45 1.4484 0 1 3 6 71.90 3.90 1.3132 2 0 2 6 71.90 5.24 1.3132 0 2 2 6 77.79 1.65 1.2277 0 0 4 2 79.20 2.59 1.2094 1 1 3 12 84.87 2.35 1.1425 2 1 1 12 84.93 1.43 1.1419 0 1 4 6 86.31 3.70 1.1271 2 0 3 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.