Zircon Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern R050203 Robinson K, Gibbs G V, Ribbe P H American Mineralogist 56 (1971) 782-790 The structure of zircon: A comparison with garnet CELL PARAMETERS: 6.604917 6.604917 5.980165 90.00000 90.00000 90.00000 ALTERNATE SETTING FOR SPACE GROUP: I4_1/amd X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 20.05 42.36 4.4331 1 0 1 27.01 100.00 3.3025 2 0 0 33.86 7.70 2.6484 2 1 1 35.66 58.11 2.5182 1 1 2 38.56 12.99 2.3352 2 2 0 40.71 6.02 2.2165 2 0 2 43.82 20.40 2.0661 3 0 1 47.65 13.61 1.9084 1 0 3 52.22 14.40 1.7515 3 2 1 53.51 54.41 1.7123 3 1 2 55.61 3.67 1.6523 2 1 3 55.65 14.96 1.6512 4 0 0 59.75 2.83 1.5474 4 1 1 62.06 3.09 1.4950 0 0 4 62.87 2.95 1.4777 3 0 3 62.91 9.94 1.4769 4 2 0 67.85 17.08 1.3808 3 3 2 68.92 10.35 1.3620 2 0 4 73.37 5.22 1.2899 4 3 1 75.47 8.95 1.2591 2 2 4 76.21 2.60 1.2487 4 1 3 80.83 9.92 1.1886 5 1 2 82.59 3.01 1.1676 4 4 0 88.06 2.65 1.1086 2 1 5 88.10 5.25 1.1083 4 0 4 88.82 2.01 1.1011 5 0 3 88.85 4.66 1.1008 6 0 0 88.85 4.66 1.1008 6 0 0 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.