Tridymite Kihara K, Matsumoto T, Imamura M Zeitschrift fur Kristallographie 177 (1986) 27-38 Structural change of orthorhombic-I tridymite with temperature: A study based on second-order thermal-vibrational parameters Note: Dollase's model, T = 733 K Locality: synthetic refractory silica brick _database_code_amcsd 0020936 CELL PARAMETERS: 8.7400 5.0400 8.2400 90.000 90.000 90.000 SPACE GROUP: C222_1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 362.969 Density (g/cm3): 2.199 MAX. ABS. INTENSITY / VOLUME**2: 12.47265331 RIR: 1.847 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.32 51.03 4.3700 2 0 0 2 20.34 100.00 4.3661 1 1 0 4 21.57 79.69 4.1200 0 0 2 2 23.04 27.16 3.8607 2 0 1 4 23.05 54.75 3.8580 1 1 1 4 29.80 8.63 2.9978 2 0 2 4 29.82 17.26 2.9965 1 1 2 4 35.59 21.60 2.5223 3 1 0 4 35.63 10.47 2.5200 0 2 0 2 38.72 5.65 2.3255 2 0 3 4 38.73 11.37 2.3249 1 1 3 4 42.00 2.08 2.1512 3 1 2 4 42.82 2.87 2.1120 4 0 1 4 42.86 5.88 2.1102 2 2 1 4 43.95 3.00 2.0600 0 0 4 2 47.11 1.15 1.9290 2 2 2 4 53.60 1.93 1.7099 4 0 3 4 53.63 3.88 1.7090 2 2 3 4 55.65 2.01 1.6515 5 1 0 4 55.68 1.99 1.6509 4 2 0 4 55.72 1.90 1.6498 1 3 0 4 56.86 1.51 1.6193 5 1 1 4 56.88 1.55 1.6187 4 2 1 4 56.92 1.49 1.6177 1 3 1 4 59.99 2.40 1.5420 2 0 5 4 60.00 4.83 1.5418 1 1 5 4 63.91 1.11 1.4567 6 0 0 2 63.97 2.19 1.4554 3 3 0 4 66.01 1.78 1.4153 5 1 3 4 66.03 1.78 1.4149 4 2 3 4 66.06 1.72 1.4143 1 3 3 4 71.74 1.02 1.3157 4 0 5 4 71.76 2.02 1.3153 2 2 5 4 75.37 1.80 1.2611 6 2 0 4 79.46 1.19 1.2061 3 1 6 4 79.48 1.10 1.2059 6 2 2 4 82.73 1.02 1.1665 5 1 5 4 82.75 1.03 1.1663 4 2 5 4 82.78 1.00 1.1659 1 3 5 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.