Leucite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060300 Peacor D R Zeitschrift fur Kristallographie 127 (1968) 213-224 A high temperature single crystal diffractometer study of leucite, (K,Na)AlSi2O6 Sample: T = 635 C Locality: Vesuvius, Italy Note: cell parameters were not reported in the paper. A value was chosen that reproduced the reported bond lengths and thermal ellipsoid axes. CELL PARAMETERS: 13.05480 13.05480 13.75180 90.00000 90.00000 90.00000 SPACE GROUP: Ia-3d X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.38 5.99 9.4723 1 0 1 13.60 2.57 6.5302 2 0 0 16.10 13.71 5.5169 1 1 2 16.52 14.31 5.3764 2 1 1 16.52 29.36 5.3764 1 2 1 18.77 7.18 4.7362 2 0 2 19.25 1.18 4.6175 2 2 0 20.56 1.63 4.3272 1 0 3 24.71 7.81 3.6071 1 2 3 25.18 3.82 3.5409 3 1 2 25.18 2.63 3.5409 1 3 2 25.45 8.57 3.5029 3 2 1 25.45 2.45 3.5029 2 3 1 25.93 72.26 3.4397 0 0 4 27.34 100.00 3.2651 4 0 0 28.29 3.28 3.1574 3 0 3 28.95 1.88 3.0868 4 1 1 28.95 2.95 3.0868 1 4 1 29.37 3.53 3.0433 2 0 4 30.32 3.17 2.9497 4 0 2 30.63 2.89 2.9204 2 4 0 30.63 27.12 2.9204 4 2 0 31.49 24.09 2.8426 3 2 3 31.49 11.88 2.8426 2 3 3 31.87 23.00 2.8099 3 3 2 33.35 1.24 2.6882 2 4 2 33.94 8.34 2.6431 3 1 4 33.94 2.54 2.6431 1 3 4 34.43 1.66 2.6064 1 4 3 36.10 1.40 2.4893 2 1 5 37.48 1.23 2.4004 5 1 2 37.68 1.79 2.3884 5 2 1 38.01 23.30 2.3681 4 0 4 38.73 2.64 2.3260 3 0 5 39.03 4.66 2.3088 4 4 0 39.29 2.29 2.2939 3 3 4 39.72 1.08 2.2697 5 0 3 41.21 1.72 2.1912 3 2 5 41.76 4.53 2.1636 2 0 6 42.16 2.28 2.1439 5 2 3 42.45 9.26 2.1298 3 5 2 43.85 2.98 2.0650 2 6 0 44.09 1.00 2.0543 1 5 4 44.93 1.37 2.0176 5 4 1 46.72 1.66 1.9446 1 6 3 47.15 1.68 1.9277 3 6 1 47.43 3.15 1.9170 4 4 4 48.52 2.48 1.8765 4 0 6 48.87 2.17 1.8637 4 5 3 48.90 1.35 1.8629 1 2 7 49.57 3.41 1.8390 3 3 6 50.39 2.32 1.8111 4 6 0 50.61 1.13 1.8036 2 4 6 50.96 1.63 1.7921 3 6 3 50.96 1.44 1.7921 6 3 3 51.21 1.59 1.7838 5 5 2 51.21 1.47 1.7838 7 1 2 51.36 1.75 1.7789 7 2 1 52.98 1.95 1.7282 7 0 3 53.01 2.96 1.7276 3 2 7 53.01 2.98 1.7276 2 3 7 53.26 1.83 1.7198 0 0 8 54.96 3.05 1.6707 7 2 3 54.98 2.62 1.6701 1 4 7 55.20 1.47 1.6640 7 3 2 55.20 10.18 1.6640 3 7 2 55.23 1.39 1.6631 2 0 8 56.35 1.43 1.6325 8 0 0 56.55 3.24 1.6272 7 1 4 56.56 1.15 1.6270 4 4 6 57.26 1.20 1.6088 8 1 1 57.51 1.52 1.6023 3 5 6 58.09 1.72 1.5877 3 1 8 58.25 3.59 1.5838 8 2 0 60.30 2.01 1.5347 7 3 4 60.31 1.27 1.5345 6 2 6 60.62 1.21 1.5275 7 4 3 60.87 1.19 1.5216 4 0 8 62.65 2.18 1.4826 7 5 2 62.65 1.52 1.4826 5 7 2 62.82 1.84 1.4789 1 2 9 63.02 1.41 1.4749 8 0 4 64.57 1.36 1.4431 9 0 1 66.32 1.14 1.4091 7 6 1 67.71 1.64 1.3835 9 0 3 67.73 1.28 1.3832 6 3 7 68.05 1.40 1.3774 8 5 1 68.28 4.15 1.3733 3 7 6 69.00 3.16 1.3608 1 1 10 69.42 1.70 1.3535 7 6 3 71.12 1.03 1.3253 5 8 3 71.45 1.06 1.3200 9 4 1 72.38 2.77 1.3053 3 1 10 72.51 1.40 1.3032 8 2 6 73.00 1.06 1.2957 7 7 2 73.12 2.55 1.2938 1 10 1 74.46 2.03 1.2739 4 9 3 75.51 1.51 1.2587 7 1 8 76.11 1.63 1.2503 1 10 3 76.12 2.19 1.2501 1 8 7 76.43 1.04 1.2458 10 3 1 78.07 1.07 1.2237 8 7 1 78.96 1.70 1.2121 5 1 10 79.39 1.19 1.2066 8 3 7 82.20 2.79 1.1723 3 5 10 84.22 1.14 1.1492 6 7 7 84.22 1.14 1.1492 6 7 7 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.