Eucryptite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R070248 Hesse K F Zeitschrift fur Kristallographie 172 (1985) 147-151 Crystal structures of natural and synthetic alpha-eucryptite, LiAlSiO4 Locality: Zimbabwae _database_code_amcsd 0010937 CELL PARAMETERS: 13.4520 13.4520 8.9900 90.000 90.000 120.000 SPACE GROUP: R-3 ATOM X Y Z OCCUPANCY ISO(B) Li 0.01980 0.81250 0.75130 1.000 1.370 Al 0.53020 0.88070 0.74950 0.500 0.471 Si 0.53020 0.88070 0.74950 0.500 0.471 Al 0.87530 0.34440 0.91600 0.500 0.453 Si 0.87530 0.34440 0.91600 0.500 0.453 O 0.75940 0.21330 0.89400 1.000 0.697 O 0.73250 0.19900 0.58440 1.000 0.625 O 0.10050 0.88440 0.94150 1.000 0.616 O 0.65900 0.00260 0.74960 1.000 0.603 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 10 +/- 10 +/- 8 MAX. ABS. INTENSITY / VOLUME**2: 7.881464049 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 13.16 42.60 6.7260 1 1 0 21.19 31.30 4.1937 0 1 2 22.48 38.80 3.9544 2 1 1 22.48 56.01 3.9544 3 -1 1 22.90 31.22 3.8833 3 0 0 25.02 7.12 3.5586 2 0 2 26.50 100.00 3.3630 2 2 0 28.37 7.76 3.1455 -1 3 2 28.37 8.45 3.1455 1 2 2 29.37 2.27 3.0406 -1 4 1 29.37 9.15 3.0406 1 3 1 32.72 44.39 2.7373 1 1 3 32.72 44.93 2.7373 2 -1 3 35.31 65.39 2.5422 4 1 0 36.77 3.45 2.4442 0 4 2 37.93 15.47 2.3724 0 3 3 37.93 14.70 2.3724 3 0 3 40.22 15.25 2.2420 3 3 0 40.31 3.61 2.2373 4 -2 3 40.31 3.80 2.2373 2 2 3 42.26 2.70 2.1384 2 4 1 43.76 1.82 2.0686 5 0 2 46.79 6.42 1.9416 6 0 0 46.87 3.58 1.9386 4 1 3 46.87 4.03 1.9386 -1 5 3 48.61 5.71 1.8732 7 -3 1 48.61 1.52 1.8732 4 3 1 48.82 12.67 1.8655 2 5 0 50.86 17.21 1.7952 6 -3 3 50.86 15.35 1.7952 3 3 3 51.35 3.63 1.7793 4 0 4 55.18 1.54 1.6646 1 2 5 55.18 4.28 1.6646 -1 3 5 55.63 1.01 1.6522 6 1 2 56.21 1.37 1.6364 -3 8 1 56.47 7.01 1.6295 0 6 3 56.47 7.49 1.6295 6 0 3 56.93 2.03 1.6176 0 5 4 58.00 1.85 1.5901 6 2 1 58.77 1.17 1.5711 3 1 5 59.95 8.33 1.5431 1 7 0 59.95 7.05 1.5431 7 1 0 60.94 2.37 1.5203 -2 8 2 61.93 16.16 1.4983 0 0 6 63.37 1.69 1.4677 3 6 0 63.37 1.99 1.4677 6 3 0 63.86 1.95 1.4577 4 3 4 65.99 1.06 1.4157 4 5 2 68.38 5.76 1.3719 -1 8 3 68.38 5.95 1.3719 7 1 3 68.38 18.05 1.3719 8 -1 3 68.38 18.14 1.3719 1 7 3 68.57 4.07 1.3686 4 -2 6 68.57 4.08 1.3686 2 2 6 69.93 3.29 1.3452 5 5 0 71.59 8.03 1.3181 -3 9 3 71.59 7.78 1.3181 6 3 3 72.05 1.58 1.3109 3 4 5 72.43 1.00 1.3048 -1 9 2 73.11 10.13 1.2944 9 0 0 73.34 5.86 1.2908 -1 5 6 73.34 5.89 1.2908 4 1 6 76.68 1.38 1.2428 9 -4 4 77.41 2.36 1.2329 3 -1 7 77.83 1.76 1.2272 10 -5 3 77.83 1.75 1.2272 5 5 3 79.81 1.49 1.2017 -2 8 5 80.47 1.33 1.1935 1 3 7 81.07 1.36 1.1862 0 6 6 81.07 1.64 1.1862 6 0 6 81.71 2.12 1.1785 9 1 2 82.42 1.78 1.1702 2 8 3 82.42 1.62 1.1702 10 -2 3 82.59 1.91 1.1682 7 -2 6 82.59 1.71 1.1682 2 5 6 86.25 1.76 1.1277 0 10 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.