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 = 9.7 GPa _database_code_amcsd 0008419 CELL PARAMETERS: 3.4420 3.4420 4.4053 90.000 90.000 120.000 SPACE GROUP: P-3m1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 45.199 Density (g/cm3): 2.648 MAX. ABS. INTENSITY / VOLUME**2: 30.41465571 RIR: 3.740 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.16 44.42 4.4053 0 0 1 2 29.98 22.10 2.9809 1 0 0 6 36.39 94.02 2.4688 0 1 1 6 36.39 5.98 2.4688 1 0 1 6 51.59 22.37 1.7715 1 0 2 6 51.59 14.19 1.7715 0 1 2 6 53.22 24.88 1.7210 1 1 0 6 57.49 12.30 1.6030 1 1 1 12 62.30 2.85 1.4904 2 0 0 6 63.34 2.55 1.4684 0 0 3 2 66.19 1.48 1.4118 0 2 1 6 66.19 9.73 1.4118 2 0 1 6 69.29 1.92 1.3561 1 1 2 12 71.64 5.56 1.3173 1 0 3 6 77.30 4.60 1.2344 0 2 2 6 77.30 3.20 1.2344 2 0 2 6 87.28 5.00 1.1171 1 1 3 12 88.85 1.07 1.1013 0 0 4 2 89.87 2.17 1.0915 1 2 1 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.