Portlandite Nagai T, Ito T, Hattori T, Yamanaka T Physics and Chemistry of Minerals 27 (2000) 462-466 Compression mechanism and amorphization of portlandite, Ca(OH)2: structural refinement under pressure Sample: P = 2.4 GPa _database_code_amcsd 0008415 CELL PARAMETERS: 3.5338 3.5338 4.7120 90.000 90.000 120.000 SPACE GROUP: P-3m1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 50.959 Density (g/cm3): 2.348 MAX. ABS. INTENSITY / VOLUME**2: 25.75273775 RIR: 3.571 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.83 66.42 4.7120 0 0 1 2 29.18 21.54 3.0604 1 0 0 6 34.96 3.71 2.5665 1 0 1 6 34.96 96.29 2.5665 0 1 1 6 48.78 20.74 1.8669 1 0 2 6 48.78 23.68 1.8669 0 1 2 6 51.74 28.00 1.7669 1 1 0 6 55.55 16.54 1.6544 1 1 1 12 58.79 1.86 1.5707 0 0 3 2 60.50 2.79 1.5302 2 0 0 6 63.97 10.86 1.4554 2 0 1 6 63.97 1.06 1.4554 0 2 1 6 66.10 1.46 1.4135 1 1 2 12 66.97 9.61 1.3974 1 0 3 6 66.97 1.15 1.3974 0 1 3 6 73.85 5.03 1.2833 2 0 2 6 73.85 4.50 1.2833 0 2 2 6 81.75 1.64 1.1780 0 0 4 2 82.10 3.76 1.1739 1 1 3 12 86.67 2.49 1.1234 1 2 1 12 89.05 1.17 1.0994 1 0 4 6 89.40 3.62 1.0960 0 2 3 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.