Fergusonite-beta-(Y) Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R080103. 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: 7.642158 10.97466 5.314838 90.00000 138.5633 90.00000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 16.13 2.56 5.4873 0 2 0 18.57 2.53 4.7705 -1 1 1 28.45 100.00 3.1334 -2 2 1 30.11 1.90 2.9641 1 3 0 30.14 84.56 2.9612 0 2 1 32.60 18.54 2.7437 0 4 0 33.80 17.80 2.6485 -2 0 2 35.46 12.16 2.5288 2 0 0 40.51 1.40 2.2242 -1 1 2 41.71 6.62 2.1633 0 4 1 44.97 2.02 2.0135 1 5 0 47.04 1.07 1.9296 -1 3 2 47.60 16.74 1.9085 -4 0 2 47.67 27.70 1.9055 -2 4 2 48.00 1.45 1.8934 1 3 1 48.93 27.53 1.8594 2 4 0 51.94 12.58 1.7587 0 0 2 55.66 11.44 1.6495 -2 6 1 56.26 15.04 1.6335 -4 2 3 56.66 10.37 1.6228 0 6 1 58.49 11.19 1.5764 -4 2 1 58.89 8.04 1.5667 -4 4 2 59.20 9.61 1.5592 -2 2 3 61.36 10.28 1.5093 2 2 1 61.55 1.10 1.5051 -2 6 2 61.63 1.88 1.5033 -1 7 1 62.69 6.67 1.4806 0 4 2 66.14 1.10 1.4113 -4 4 1 68.31 2.06 1.3718 0 8 0 73.25 1.95 1.2910 -2 8 1 75.05 3.92 1.2644 4 0 0 76.10 1.47 1.2496 -4 -6 3 78.03 2.03 1.2234 -4 -6 1 78.44 3.38 1.2181 -2 8 2 78.65 5.07 1.2153 -2 6 3 79.39 3.54 1.2058 2 8 0 80.56 3.42 1.1913 2 6 1 84.24 2.75 1.1483 4 4 0 84.40 4.23 1.1466 0 2 3 88.23 1.39 1.1064 2 0 2 88.23 1.39 1.1064 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.