Corundum d'Amour H, Schiferl D, Denner W, Schulz H, Holzapfel W B Journal of Applied Physics 49 (1978) 4411-4416 High-pressure single-crystal structure determinations for ruby up to 90 kbar using an automatic diffractometer P = 0 kbar _database_code_amcsd 0012914 CELL PARAMETERS: 4.7657 4.7657 13.0100 90.000 90.000 120.000 SPACE GROUP: R-3c X-RAY WAVELENGTH: 1.541838 Cell Volume: 255.895 Density (g/cm3): 3.969 MAX. ABS. INTENSITY / VOLUME**2: 12.46443835 RIR: 1.022 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 25.56 61.63 3.4850 0 1 2 6 35.13 94.36 2.5546 1 0 4 6 37.75 44.05 2.3828 1 1 0 6 43.33 98.24 2.0884 1 1 3 12 46.15 1.47 1.9670 2 0 2 6 52.52 49.52 1.7425 0 2 4 6 57.46 100.00 1.6037 1 1 6 12 59.70 2.62 1.5488 2 1 1 12 61.09 3.33 1.5169 1 2 2 12 61.26 7.35 1.5130 0 1 8 6 66.47 39.50 1.4065 2 1 4 12 68.16 61.12 1.3757 3 0 0 6 70.37 1.32 1.3379 1 2 5 12 74.25 1.44 1.2773 2 0 8 6 76.82 17.90 1.2408 1 0 10 6 77.18 9.54 1.2359 1 1 9 12 80.64 2.32 1.1914 2 2 0 6 84.29 1.90 1.1489 2 2 3 12 86.29 1.43 1.1274 3 1 2 12 86.44 2.90 1.1258 1 2 8 12 88.93 8.50 1.1005 0 2 10 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.