Tridymite Dollase W A, Baur W H American Mineralogist 61 (1976) 971-978 The superstructure of meteoritic low tridymite solved by computer simulation Locality: Steinbach meteorite, Saxony, Germany _database_code_amcsd 0000531 CELL PARAMETERS: 18.5240 5.0032 23.8100 90.000 105.820 90.000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 Cell Volume: 2123.110 Density (g/cm3): 2.255 MAX. ABS. INTENSITY / VOLUME**2: 11.10672854 RIR: 1.603 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.31 2.39 4.5975 -4 0 2 1 19.46 1.06 4.5621 -1 1 2 2 20.52 100.00 4.3278 1 1 2 2 20.59 56.45 4.3127 2 0 4 1 21.07 1.65 4.2167 -1 1 3 2 21.68 82.51 4.0998 -4 0 4 1 22.88 1.27 3.8871 -3 1 1 2 23.24 27.04 3.8280 -1 1 4 2 23.24 26.78 3.8269 3 1 0 2 23.30 15.71 3.8180 0 0 6 1 23.31 15.03 3.8159 4 0 2 1 24.24 3.06 3.6712 3 1 1 2 25.81 2.49 3.4520 3 1 2 2 25.83 2.30 3.4491 -1 1 5 2 26.27 4.50 3.3919 -4 0 6 1 27.62 3.50 3.2293 -3 1 5 2 27.82 1.51 3.2072 2 0 6 1 27.85 1.32 3.2040 1 1 5 2 28.92 1.10 3.0870 -6 0 2 1 30.02 6.08 2.9769 -3 1 6 2 30.03 7.32 2.9758 -5 1 2 2 30.06 4.48 2.9724 -2 0 8 1 30.08 5.05 2.9704 6 0 0 1 30.28 2.08 2.9514 3 1 4 2 30.41 2.12 2.9390 -5 1 3 2 31.92 1.94 2.8034 5 1 1 2 32.22 5.52 2.7779 -4 0 8 1 32.73 1.23 2.7358 -3 1 7 2 34.24 4.07 2.6188 1 1 7 2 34.41 2.64 2.6065 -5 1 6 2 34.87 1.11 2.5732 4 0 6 1 35.44 3.44 2.5332 5 1 3 2 35.90 20.91 2.5016 0 2 0 2 36.03 10.97 2.4928 3 1 6 2 38.97 1.81 2.3113 -5 1 8 2 38.98 4.62 2.3106 -7 1 4 2 39.00 2.30 2.3093 -4 0 10 1 39.03 6.72 2.3079 -8 0 2 1 40.30 2.26 2.2379 5 1 5 2 41.32 1.63 2.1850 1 1 9 2 42.32 2.41 2.1355 -4 2 4 2 42.63 1.88 2.1210 3 1 8 2 43.24 3.03 2.0925 0 2 6 2 43.25 2.69 2.0921 4 2 2 2 43.38 1.98 2.0858 2 0 10 1 43.40 1.33 2.0851 6 0 6 1 44.18 2.55 2.0499 -8 0 8 1 46.71 1.23 1.9447 -7 1 9 2 49.90 1.12 1.8276 6 0 8 1 54.04 1.05 1.6969 -4 2 10 2 54.06 1.75 1.6963 -8 2 2 2 54.07 1.79 1.6959 -8 0 12 1 54.16 2.39 1.6935 -2 0 14 1 54.20 1.92 1.6923 10 0 2 1 55.54 1.58 1.6545 -9 1 10 2 56.17 3.49 1.6374 1 3 2 2 56.42 1.67 1.6309 5 1 10 2 57.38 1.17 1.6057 -1 3 4 2 57.39 1.40 1.6057 3 3 0 2 60.35 1.38 1.5337 -9 1 12 2 60.37 1.85 1.5333 -11 1 8 2 60.40 1.67 1.5325 -12 0 6 1 63.46 1.26 1.4658 1 3 7 2 64.22 1.01 1.4503 5 3 3 2 64.61 2.49 1.4426 3 3 6 2 64.86 1.77 1.4376 6 0 12 1 66.70 1.20 1.4024 -2 2 14 2 66.78 2.60 1.4009 -1 1 16 2 66.82 1.25 1.4001 11 1 4 2 72.37 1.27 1.3058 -6 0 18 1 76.40 1.17 1.2466 -12 2 10 2 76.41 1.92 1.2464 6 2 12 2 76.93 1.09 1.2394 -2 4 1 2 80.02 1.30 1.1990 5 3 10 2 80.24 1.76 1.1964 -15 1 4 2 80.53 1.08 1.1927 2 2 16 2 83.52 1.07 1.1576 -6 2 18 2 83.59 1.36 1.1568 -5 1 20 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.