Tridymite
Graetsch H
Physics and Chemistry of Minerals 28 (2001) 313-321
X-ray powder diffraction study on the modulated high temperature forms
of SiO2 tridymite between 110 and 220 C
Sample: superstructure, T = 115 C
Locality: synthetic
_database_code_amcsd 0008553
CELL PARAMETERS: 26.1753 4.9844 8.2006 90.000 90.000 90.000
SPACE GROUP: P2_12_12_1
X-RAY WAVELENGTH: 1.541838
Cell Volume: 1069.911
Density (g/cm3): 2.238
MAX. ABS. INTENSITY / VOLUME**2: 9.987514167
RIR: 1.453
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
19.05 2.60 4.6580 2 1 0 4
20.36 63.29 4.3626 6 0 0 2
20.52 100.00 4.3279 3 1 0 4
21.67 93.58 4.1003 0 0 2 2
21.94 1.46 4.0509 1 0 2 4
21.95 2.73 4.0502 2 1 1 4
22.42 4.61 3.9651 4 1 0 4
23.09 38.24 3.8515 6 0 1 4
23.24 69.87 3.8276 3 1 1 4
24.94 1.77 3.5697 4 1 1 4
27.16 1.46 3.2828 6 1 0 4
29.01 1.97 3.0777 2 1 2 4
29.91 8.81 2.9878 6 0 2 4
30.02 28.87 2.9766 3 1 2 4
31.38 1.69 2.8504 4 1 2 4
32.74 4.18 2.7352 8 1 0 4
34.57 1.09 2.5947 8 1 1 4
35.74 16.54 2.5120 9 1 0 4
36.04 9.68 2.4922 0 2 0 2
36.21 1.49 2.4810 1 2 0 4
37.44 1.78 2.4018 9 1 1 4
37.73 4.62 2.3845 0 2 1 4
38.86 2.10 2.3174 10 1 0 4
38.88 7.29 2.3164 6 0 3 4
38.97 6.49 2.3111 3 1 3 4
42.90 4.07 2.1080 12 0 1 4
43.24 5.74 2.0924 6 2 1 4
44.18 3.12 2.0501 0 0 4 2
44.93 1.10 2.0175 10 1 2 4
47.20 1.17 1.9257 12 0 2 4
47.51 2.70 1.9138 6 2 2 4
49.18 5.93 1.8528 3 1 4 4
53.76 2.76 1.7050 12 0 3 4
54.05 2.47 1.6967 6 2 3 4
54.48 1.07 1.6844 11 2 1 4
55.82 1.68 1.6470 15 1 0 4
57.03 2.61 1.6148 15 1 1 4
57.24 2.02 1.6095 12 2 1 4
57.58 3.00 1.6007 3 3 1 4
60.29 3.03 1.5352 6 0 5 4
60.35 3.15 1.5337 3 1 5 4
62.40 1.31 1.4883 6 2 4 4
63.85 1.06 1.4578 8 3 1 4
64.03 1.75 1.4542 18 0 0 2
65.72 1.33 1.4208 9 3 1 4
66.25 2.41 1.4107 15 1 3 4
66.44 1.09 1.4072 12 2 3 4
72.04 1.32 1.3109 12 0 5 4
72.28 1.60 1.3071 6 2 5 4
75.73 1.06 1.2560 18 2 0 4
76.77 1.50 1.2415 18 2 1 4
77.58 1.35 1.2306 1 4 1 4
79.90 1.85 1.2006 9 1 6 4
83.11 1.29 1.1622 15 1 5 4
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.