Dravite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060280 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: 15.93500 15.93500 7.160000 90.00000 90.00000 120.0000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 13.99 47.32 6.3812 1 0 1 17.92 17.31 4.9797 0 2 1 19.42 11.73 4.5977 3 0 0 21.15 58.64 4.2222 2 1 1 22.43 76.99 3.9818 2 2 0 25.68 54.51 3.4823 0 1 2 26.49 6.62 3.3781 1 3 1 28.07 1.38 3.1906 2 0 2 28.81 2.05 3.1098 4 0 1 29.78 8.56 3.0099 4 1 0 30.28 60.30 2.9617 1 2 2 30.97 6.36 2.8968 3 2 1 34.30 4.53 2.6213 3 1 2 34.92 100.00 2.5759 0 5 1 36.17 1.51 2.4899 0 4 2 36.76 2.87 2.4509 2 4 1 37.58 8.21 2.3993 0 0 3 37.95 13.94 2.3764 2 3 2 38.52 14.91 2.3425 5 1 1 39.28 2.30 2.2989 6 0 0 40.95 1.54 2.2087 5 2 0 41.32 13.41 2.1894 5 0 2 41.85 10.44 2.1628 4 3 1 42.59 5.02 2.1271 0 3 3 42.59 5.17 2.1271 3 0 3 42.93 4.10 2.1111 4 2 2 44.15 11.12 2.0550 2 2 3 44.48 38.94 2.0406 1 5 2 44.98 8.31 2.0190 1 6 1 45.65 3.00 1.9909 4 4 0 47.47 26.37 1.9185 3 4 2 47.95 2.32 1.9005 3 5 1 48.61 7.78 1.8762 1 4 3 49.38 7.66 1.8486 6 2 1 50.00 1.59 1.8270 7 1 0 50.32 1.46 1.8160 6 1 2 51.41 4.50 1.7800 3 3 3 51.28 1.41 1.7843 1 0 4 52.64 2.18 1.7412 0 2 4 53.06 1.33 1.7284 5 3 2 54.39 3.11 1.6890 2 6 2 55.42 16.48 1.6599 0 6 3 55.42 4.36 1.6599 6 0 3 56.13 12.88 1.6407 2 7 1 57.97 16.59 1.5927 5 5 0 57.87 3.79 1.5953 4 0 4 58.26 2.82 1.5854 4 5 2 58.67 1.67 1.5752 8 1 1 59.13 1.25 1.5642 3 2 4 59.92 4.14 1.5453 4 6 1 60.47 4.18 1.5326 9 0 0 60.75 4.38 1.5261 7 2 2 61.16 1.86 1.5170 7 3 1 61.70 3.63 1.5050 8 2 0 61.60 14.99 1.5072 0 5 4 62.81 3.31 1.4809 2 4 4 63.19 1.29 1.4730 1 8 2 64.13 3.21 1.4535 1 7 3 64.01 15.22 1.4559 5 1 4 64.38 5.41 1.4484 6 4 2 65.30 4.56 1.4303 7 4 0 65.22 3.63 1.4318 0 1 5 65.95 1.45 1.4176 1 9 1 65.95 7.34 1.4176 6 5 1 66.49 1.52 1.4074 3 6 3 66.49 3.52 1.4074 6 3 3 66.38 11.07 1.4096 4 3 4 68.28 1.48 1.3747 3 8 1 69.43 10.16 1.3547 10 0 1 70.20 3.54 1.3417 5 6 2 71.08 3.82 1.3273 6 6 0 71.10 4.61 1.3269 5 5 3 70.98 2.92 1.3288 3 5 4 71.00 2.27 1.3285 0 4 5 72.21 9.38 1.3092 10 1 0 72.12 1.13 1.3106 6 2 4 72.47 2.36 1.3052 8 3 2 72.13 2.21 1.3103 2 3 5 72.83 1.46 1.2994 5 7 1 73.59 1.77 1.2880 0 10 2 73.95 1.38 1.2825 8 4 1 74.45 3.87 1.2752 9 3 0 74.47 2.20 1.2749 2 8 3 74.38 10.73 1.2762 5 0 5 75.47 2.53 1.2604 5 4 4 77.28 3.68 1.2353 0 11 1 77.78 1.12 1.2286 7 4 3 78.02 1.50 1.2255 4 8 2 78.37 1.29 1.2207 2 10 1 78.79 2.17 1.2153 3 4 5 80.02 1.77 1.1996 0 0 6 80.97 1.26 1.1880 6 1 5 81.64 3.25 1.1798 11 1 1 83.27 1.25 1.1608 3 0 6 84.30 5.94 1.1492 10 1 3 85.61 1.17 1.1350 1 11 2 86.45 1.76 1.1260 9 3 3 87.58 1.04 1.1144 1 4 6 89.56 2.05 1.0947 10 0 4 89.56 2.05 1.0947 10 0 4 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.