Dravite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060286 Marschall H R, Ertl A, Hughes J M, McCammon C A European Journal of Mineralogy 16 (2004) 817-823 Metamorphic Na- and OH-rich disordered dravite with tetrahedral boron, associated with omphacite, from Syros, Greece: chemistry and structure Sample: SY309B Locality: Syros, Greece CELL PARAMETERS: 15.94430 15.94430 7.209400 90.00000 90.00000 120.0000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 11.10 2.04 7.9718 1 1 0 13.86 27.25 6.3899 1 0 1 17.79 19.51 4.9859 0 2 1 19.28 15.12 4.6025 3 0 0 21.01 59.82 4.2272 2 1 1 22.30 73.74 3.9859 2 2 0 25.54 48.08 3.4873 0 1 2 26.34 12.69 3.3819 1 3 1 28.66 3.36 3.1133 4 0 1 29.64 13.08 3.0131 4 1 0 30.12 72.77 2.9656 1 2 2 30.82 7.52 2.9000 3 2 1 34.15 5.33 2.6246 3 1 2 34.77 100.00 2.5788 0 5 1 36.01 1.68 2.4929 0 4 2 36.61 2.13 2.4536 2 4 1 37.41 9.12 2.4027 0 0 3 37.79 14.77 2.3793 2 3 2 38.37 18.11 2.3450 5 1 1 39.12 2.46 2.3013 6 0 0 41.16 11.15 2.1920 5 0 2 41.69 12.01 2.1651 4 3 1 42.42 5.62 2.1300 0 3 3 42.42 5.65 2.1300 3 0 3 42.76 7.18 2.1136 4 2 2 43.98 12.38 2.0578 2 2 3 44.31 41.31 2.0430 1 5 2 44.82 6.21 2.0212 1 6 1 45.49 3.90 1.9930 4 4 0 47.30 31.23 1.9207 3 4 2 47.78 1.80 1.9026 3 5 1 48.43 5.43 1.8786 1 4 3 49.21 7.54 1.8506 6 2 1 49.83 1.05 1.8289 7 1 0 50.15 1.00 1.8181 6 1 2 51.08 3.20 1.7869 1 0 4 51.23 3.40 1.7822 3 3 3 52.45 1.54 1.7436 0 2 4 54.21 3.21 1.6909 2 6 2 55.24 15.72 1.6620 0 6 3 55.24 4.35 1.6620 6 0 3 55.95 15.41 1.6425 2 7 1 57.67 3.58 1.5975 4 0 4 57.79 17.87 1.5944 5 5 0 58.08 3.17 1.5872 4 5 2 58.49 2.12 1.5769 8 1 1 58.93 1.66 1.5663 3 2 4 59.74 3.70 1.5469 4 6 1 60.29 4.64 1.5342 9 0 0 60.57 6.00 1.5278 7 2 2 60.97 1.55 1.5186 7 3 1 61.40 15.56 1.5092 0 5 4 61.51 3.82 1.5065 8 2 0 62.61 3.81 1.4828 2 4 4 63.00 1.63 1.4746 1 8 2 63.81 16.53 1.4578 5 1 4 63.93 3.65 1.4553 1 7 3 64.19 4.67 1.4500 6 4 2 65.00 3.53 1.4339 0 1 5 65.11 4.45 1.4318 7 4 0 65.76 6.27 1.4191 6 5 1 65.76 1.61 1.4191 1 9 1 66.17 11.58 1.4114 4 3 4 66.29 1.49 1.4091 3 6 3 66.29 3.96 1.4091 6 3 3 68.09 1.34 1.3762 3 8 1 69.24 10.17 1.3561 10 0 1 70.00 2.85 1.3432 5 6 2 70.77 2.48 1.3304 3 5 4 70.78 2.79 1.3303 0 4 5 70.88 3.53 1.3286 6 6 0 70.89 4.36 1.3285 5 5 3 71.90 1.17 1.3123 6 2 4 71.91 2.10 1.3121 2 3 5 72.01 10.89 1.3106 10 1 0 72.26 2.43 1.3066 8 3 2 72.63 1.32 1.3008 5 7 1 73.38 1.49 1.2894 0 10 2 73.75 1.84 1.2838 8 4 1 74.15 10.93 1.2780 5 0 5 74.24 4.34 1.2765 9 3 0 74.25 2.31 1.2764 2 8 3 75.25 3.68 1.2620 5 4 4 77.07 4.06 1.2366 0 11 1 77.80 1.93 1.2268 4 8 2 78.16 1.27 1.2220 2 10 1 78.55 2.70 1.2170 3 4 5 79.77 1.91 1.2014 0 0 6 81.43 2.85 1.1811 11 1 1 83.02 1.38 1.1624 3 0 6 84.07 5.58 1.1505 10 1 3 86.10 1.01 1.1285 1 9 4 86.10 1.14 1.1285 6 5 4 86.22 2.03 1.1273 9 3 3 89.32 2.25 1.0960 10 0 4 89.33 1.11 1.0959 7 2 5 89.45 1.35 1.0947 3 3 6 89.45 1.35 1.0947 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.