Fergusonite-beta-(Y) Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R080102. Weitzel H, Schrocke H Zeitschrift fur Kristallographie 152 (1980) 69-82 Kristallstrukturverfeinerungen von euxenit, Y(Nb0.5Ti0.5)2O6, und M-fergusonit, YNbO4 CELL PARAMETERS: 7.644889 11.01705 5.325120 90.00000 138.3808 90.00000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 16.11 2.56 5.5085 0 2 0 18.57 2.53 4.7830 -1 1 1 28.45 100.00 3.1383 -2 2 1 30.04 1.90 2.9756 1 3 0 30.03 84.56 2.9762 0 2 1 32.52 18.54 2.7543 0 4 0 33.77 17.80 2.6547 -2 0 2 35.36 12.16 2.5388 2 0 0 40.36 1.40 2.2345 -1 1 2 41.56 6.62 2.1731 0 4 1 44.84 2.02 2.0213 1 5 0 46.87 1.07 1.9382 -1 3 2 47.62 16.74 1.9093 -4 0 2 47.57 27.70 1.9114 -2 4 2 47.79 1.45 1.9030 1 3 1 48.78 27.53 1.8667 2 4 0 51.68 12.58 1.7684 0 0 2 55.52 11.44 1.6548 -2 6 1 56.24 15.04 1.6353 -4 2 3 56.45 10.37 1.6296 0 6 1 58.38 11.19 1.5802 -4 2 1 58.83 8.04 1.5691 -4 4 2 58.98 9.61 1.5655 -2 2 3 61.07 10.28 1.5170 2 2 1 61.37 1.10 1.5101 -2 6 2 61.42 1.88 1.5090 -1 7 1 62.38 6.67 1.4881 0 4 2 65.99 1.10 1.4152 -4 4 1 68.05 2.06 1.3771 0 8 0 73.00 1.95 1.2955 -2 8 1 74.75 3.92 1.2694 4 0 0 75.95 1.47 1.2524 -4 -6 3 77.80 2.03 1.2271 -4 -6 1 78.15 3.38 1.2224 -2 8 2 78.33 5.07 1.2202 -2 6 3 79.07 3.54 1.2105 2 8 0 80.16 3.42 1.1968 2 6 1 83.88 2.75 1.1528 4 4 0 83.89 4.23 1.1528 0 2 3 87.67 1.39 1.1125 2 0 2 87.67 1.39 1.1125 2 0 2 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.