Sklodowskite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R050445 Mokeeva V I Soviet Physics Crystallography 9 (1964) 217-218 The structure of sklodowskite CELL PARAMETERS: 17.3680 7.0450 6.6040 90.000 105.920 90.000 SPACE GROUP: I2/m ATOM X Y Z OCCUPANCY ISO(B) Mg 0.00000 0.00000 0.50000 1.000 2.500 U 0.25700 0.00000 0.12000 1.000 2.500 Si 0.21800 0.00000 0.57000 1.000 2.500 O 0.28000 0.00000 0.78000 1.000 2.500 O 0.12800 0.00000 0.62700 1.000 2.500 O 0.23500 0.18700 0.44000 1.000 2.500 O 0.15500 0.00000 0.03500 1.000 2.500 O 0.35500 0.00000 0.18500 1.000 2.500 Wa 0.02000 0.21000 0.30000 1.000 2.500 Wa 0.08000 0.50000 0.82000 1.000 2.500 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 15 +/- 6 +/- 5 MAX. ABS. INTENSITY / VOLUME**2: 117.9896134 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.59 100.00 8.3509 2 0 0 13.49 9.14 6.5643 -1 0 1 16.24 19.99 5.4594 1 0 1 18.08 7.50 4.9063 -3 0 1 18.81 10.81 4.7170 0 1 1 19.64 24.14 4.5204 -2 1 1 21.28 27.22 4.1755 4 0 0 23.47 10.51 3.7898 2 1 1 23.97 6.73 3.7120 3 0 1 25.28 18.63 3.5225 0 2 0 25.45 11.73 3.5004 -4 1 1 27.17 1.74 3.2821 -2 0 2 27.48 24.61 3.2456 2 2 0 28.76 3.09 3.1038 -1 2 1 29.98 25.15 2.9805 -1 1 2 30.19 3.36 2.9599 1 2 1 31.05 13.23 2.8801 -3 1 2 31.26 3.78 2.8614 -3 2 1 32.16 4.86 2.7836 6 0 0 32.69 10.84 2.7394 1 1 2 33.28 4.78 2.6924 4 2 0 33.56 5.79 2.6700 5 0 1 33.89 3.20 2.6448 -6 1 1 35.12 5.89 2.5552 3 2 1 35.60 7.69 2.5219 -5 1 2 38.47 3.21 2.3400 3 1 2 39.89 1.13 2.2599 7 1 0 40.86 1.65 2.2085 6 1 1 40.98 2.91 2.2026 0 3 1 41.26 2.69 2.1881 -3 0 3 41.34 5.21 2.1840 6 2 0 41.39 4.52 2.1815 -2 3 1 41.50 2.35 2.1759 -1 0 3 42.48 1.74 2.1278 5 2 1 42.66 5.37 2.1196 -7 1 2 43.06 1.66 2.1007 -2 1 3 43.34 3.40 2.0877 8 0 0 43.48 2.14 2.0815 2 3 1 43.69 2.25 2.0717 -8 1 1 43.91 2.21 2.0620 -5 0 3 44.05 1.12 2.0556 7 0 1 44.24 1.57 2.0473 -4 1 3 44.65 3.24 2.0294 -4 3 1 44.70 1.49 2.0274 0 1 3 46.36 2.16 1.9586 5 1 2 47.58 8.04 1.9113 -1 3 2 48.31 2.70 1.8840 -3 3 2 48.94 2.23 1.8612 2 1 3 49.01 3.03 1.8587 -3 2 3 49.46 2.87 1.8429 1 3 2 50.32 1.97 1.8132 -6 3 1 50.84 1.98 1.7960 8 2 0 51.34 1.46 1.7795 -5 2 3 51.41 2.43 1.7772 -9 1 2 51.47 1.86 1.7754 7 2 1 51.57 3.46 1.7722 -5 3 2 51.92 3.04 1.7613 0 4 0 51.96 1.39 1.7600 1 2 3 53.15 2.18 1.7233 2 4 0 53.75 1.99 1.7055 3 3 2 54.41 2.78 1.6862 -10 1 1 55.25 2.28 1.6627 9 0 1 55.33 1.68 1.6604 4 1 3 55.72 1.58 1.6498 7 1 2 55.90 1.41 1.6447 -2 0 4 56.73 1.88 1.6228 4 4 0 57.05 1.40 1.6142 -7 3 2 60.09 1.10 1.5396 5 3 2 61.46 1.17 1.5087 -11 1 2 61.69 1.33 1.5036 9 2 1 62.30 1.50 1.4903 -2 2 4 62.43 1.24 1.4876 -4 2 4 64.36 1.06 1.4474 0 2 4 64.40 1.29 1.4467 -9 3 2 66.00 1.06 1.4155 -12 1 1 67.02 1.77 1.3963 -10 3 1 70.96 1.02 1.3282 -11 2 3 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.