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 = 653 K Locality: synthetic refractory silica brick _database_code_amcsd 0020934 CELL PARAMETERS: 8.7430 5.0460 8.2540 90.000 90.000 90.000 SPACE GROUP: C222_1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 364.143 Density (g/cm3): 2.192 MAX. ABS. INTENSITY / VOLUME**2: 11.53665499 RIR: 1.714 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 20.31 59.63 4.3715 2 0 0 2 20.32 100.00 4.3703 1 1 0 4 21.53 85.40 4.1270 0 0 2 2 23.02 28.05 3.8631 2 0 1 4 23.03 61.83 3.8623 1 1 1 4 29.77 8.99 3.0009 2 0 2 4 29.78 19.66 3.0006 1 1 2 4 35.57 22.91 2.5237 3 1 0 4 35.58 11.13 2.5230 0 2 0 2 38.67 6.06 2.3285 2 0 3 4 38.67 11.01 2.3284 1 1 3 4 41.96 2.18 2.1530 3 1 2 4 42.80 3.48 2.1129 4 0 1 4 42.81 5.96 2.1124 2 2 1 4 43.88 3.28 2.0635 0 0 4 2 47.06 1.27 1.9312 2 2 2 4 48.81 1.67 1.8660 1 1 4 4 53.55 2.15 1.7114 4 0 3 4 53.56 3.77 1.7111 2 2 3 4 55.63 2.54 1.6522 5 1 0 4 55.63 1.67 1.6520 4 2 0 4 55.65 1.66 1.6517 1 3 0 4 56.83 1.64 1.6201 5 1 1 4 56.84 1.93 1.6199 4 2 1 4 56.85 2.16 1.6196 1 3 1 4 59.89 2.63 1.5444 2 0 5 4 59.89 5.14 1.5443 1 1 5 4 60.35 1.00 1.5337 4 2 2 4 63.88 1.20 1.4572 6 0 0 2 63.90 2.24 1.4568 3 3 0 4 65.95 1.84 1.4164 5 1 3 4 65.96 1.75 1.4163 4 2 3 4 65.97 1.75 1.4161 1 3 3 4 71.64 1.24 1.3173 4 0 5 4 71.65 2.10 1.3172 2 2 5 4 75.32 1.79 1.2618 6 2 0 4 79.32 1.27 1.2079 3 1 6 4 79.42 1.04 1.2067 6 2 2 4 82.62 1.06 1.1678 5 1 5 4 82.63 1.12 1.1677 4 2 5 4 82.64 1.07 1.1676 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.