Cristobalite Dera P, Lazarz J D, Prakapenka V B, Barkley M, Downs R T Physics and Chemistry of Minerals 38 (2011) 517-529 New insights into the high-pressure polymorphism of SiO2 cristobalite Note: P = 5.4 GPa Locality: Ellora Caves, India _database_code_amcsd 0018345 CELL PARAMETERS: 4.6820 4.6820 6.3110 90.000 90.000 90.000 SPACE GROUP: P4_12_12 X-RAY WAVELENGTH: 1.541838 Cell Volume: 138.344 Density (g/cm3): 2.884 MAX. ABS. INTENSITY / VOLUME**2: 27.03155294 RIR: 3.052 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 23.66 100.00 3.7602 1 0 1 8 26.93 4.79 3.3107 1 1 0 4 30.49 21.39 2.9318 1 1 1 8 34.27 31.54 2.6167 1 0 2 8 38.45 29.98 2.3410 2 0 0 4 41.13 1.67 2.1949 2 0 1 8 45.65 7.55 1.9873 2 1 1 8 51.47 8.21 1.7755 1 1 3 8 52.45 6.95 1.7447 2 1 2 8 55.51 2.77 1.6553 2 2 0 4 58.50 5.24 1.5777 0 0 4 2 59.03 4.03 1.5647 2 0 3 8 61.17 1.28 1.5150 3 0 1 8 62.76 2.78 1.4806 3 1 0 8 63.46 1.91 1.4659 2 2 2 8 64.66 6.69 1.4414 3 1 1 8 66.88 13.40 1.3989 3 0 2 8 72.21 3.40 1.3083 2 0 4 8 74.62 3.27 1.2719 3 2 1 8 75.44 1.82 1.2601 2 1 4 8 78.48 4.43 1.2187 1 0 5 8 79.10 7.19 1.2108 3 1 3 8 79.88 5.89 1.2008 3 2 2 8 87.23 2.70 1.1176 4 1 1 8 88.48 1.08 1.1050 3 2 3 8 88.63 2.03 1.1036 3 3 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.