Uvite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern R050172 MacDonald D J, Hawthorne F C The Canadian Mineralogist 33 (1995) 849-858 The crystal chemistry of Si=Al substitution in tourmaline Sample: T72 CELL PARAMETERS: 15.98479 15.98479 7.221684 90.00000 90.00000 120.0000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 13.86 9.12 6.4028 1 0 1 17.77 24.94 4.9970 0 2 1 19.26 24.57 4.6144 3 0 0 20.99 60.18 4.2371 2 1 1 22.27 64.39 3.9962 2 2 0 25.51 41.40 3.4939 0 1 2 26.31 14.32 3.3901 1 3 1 28.62 3.02 3.1209 4 0 1 29.59 21.52 3.0208 4 1 0 30.08 86.69 2.9719 1 2 2 30.77 8.20 2.9072 3 2 1 33.65 1.12 2.6641 3 3 0 34.10 8.00 2.6303 3 1 2 34.71 100.00 2.5852 0 5 1 35.95 2.89 2.4985 0 4 2 36.54 2.93 2.4597 2 4 1 37.36 8.22 2.4072 0 0 3 37.73 11.89 2.3847 2 3 2 38.29 21.02 2.3509 5 1 1 39.05 4.40 2.3072 6 0 0 39.09 1.33 2.3049 1 1 3 41.09 9.01 2.1971 5 0 2 41.61 14.33 2.1706 4 3 1 42.35 5.64 2.1343 0 3 3 42.35 6.53 2.1343 3 0 3 42.68 10.66 2.1185 4 2 2 43.91 16.60 2.0620 2 2 3 44.23 42.15 2.0478 1 5 2 44.72 6.34 2.0263 1 6 1 45.39 6.08 1.9981 4 4 0 47.21 36.79 1.9253 3 4 2 48.34 3.41 1.8826 1 4 3 49.10 7.36 1.8553 6 2 1 50.04 1.47 1.8225 6 1 2 51.01 3.40 1.7903 1 0 4 51.13 4.17 1.7861 3 3 3 52.36 1.57 1.7470 0 2 4 52.77 1.53 1.7345 0 7 2 53.20 1.13 1.7214 5 4 1 54.10 3.65 1.6950 2 6 2 55.13 14.47 1.6657 0 6 3 55.13 5.06 1.6657 6 0 3 55.82 16.88 1.6467 2 7 1 57.66 20.70 1.5985 5 5 0 57.57 2.98 1.6007 4 0 4 57.95 3.84 1.5911 4 5 2 58.36 2.22 1.5809 8 1 1 58.82 3.23 1.5695 3 2 4 59.20 1.08 1.5605 8 0 2 59.60 3.46 1.5509 4 6 1 60.14 4.70 1.5381 9 0 0 60.43 7.96 1.5316 7 2 2 60.83 1.08 1.5225 7 3 1 61.36 3.76 1.5104 8 2 0 61.28 16.87 1.5123 0 5 4 62.49 3.76 1.4859 2 4 4 62.85 2.12 1.4782 1 8 2 63.68 19.62 1.4609 5 1 4 63.79 4.86 1.4586 1 7 3 63.79 1.19 1.4586 7 1 3 64.04 4.50 1.4536 6 4 2 64.94 5.29 1.4355 7 4 0 64.89 4.41 1.4365 0 1 5 65.60 5.16 1.4227 6 5 1 65.60 1.92 1.4227 1 9 1 66.03 10.93 1.4144 4 3 4 66.14 1.23 1.4124 3 6 3 66.14 5.13 1.4124 6 3 3 67.92 1.43 1.3797 3 8 1 69.06 10.71 1.3596 10 0 1 69.83 2.23 1.3465 5 6 2 70.70 3.83 1.3321 6 6 0 70.62 2.63 1.3334 3 5 4 70.72 3.83 1.3316 5 5 3 70.64 3.93 1.3329 0 4 5 71.82 13.31 1.3139 10 1 0 71.74 1.42 1.3152 6 2 4 71.77 1.46 1.3148 2 3 5 72.08 3.14 1.3098 8 3 2 72.44 1.39 1.3041 5 7 1 73.20 1.14 1.2926 0 10 2 73.56 2.46 1.2871 8 4 1 74.05 4.19 1.2798 9 3 0 74.07 2.94 1.2794 2 8 3 74.00 11.47 1.2806 5 0 5 75.08 4.42 1.2648 5 4 4 76.20 1.50 1.2489 1 5 5 76.51 1.50 1.2447 7 5 2 76.86 4.53 1.2398 0 11 1 77.60 2.74 1.2299 4 8 2 77.95 1.27 1.2251 2 10 1 78.38 2.23 1.2195 3 4 5 79.62 2.20 1.2036 0 0 6 81.20 3.04 1.1841 11 1 1 82.85 1.40 1.1646 3 0 6 83.85 4.99 1.1533 10 1 3 85.89 1.34 1.1311 1 9 4 85.89 1.67 1.1311 6 5 4 85.98 2.72 1.1300 9 3 3 89.08 2.37 1.0986 10 0 4 89.11 1.08 1.0983 7 2 5 89.26 1.64 1.0969 3 3 6 89.26 1.64 1.0969 3 3 6 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.