Dravite Foit F F, Rosenberg P E American Mineralogist 64 (1979) 788-798 The structure of vanadium-bearing tourmaline and its implications regarding tourmaline solid solutions Locality: Silver Knob, Mariposa County, California, USA _database_code_amcsd 0000739 CELL PARAMETERS: 15.9670 15.9670 7.1910 90.000 90.000 120.000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 1587.693 Density (g/cm3): 3.148 MAX. ABS. INTENSITY / VOLUME**2: 8.272098614 RIR: 0.856 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.88 26.25 6.3799 1 0 1 3 17.80 19.38 4.9840 0 2 1 3 19.26 19.65 4.6093 3 0 0 3 21.01 51.23 4.2277 2 1 1 6 22.27 63.36 3.9918 2 2 0 6 25.60 47.24 3.4798 0 1 2 3 26.34 9.15 3.3840 1 3 1 6 27.97 1.13 3.1899 2 0 2 3 28.65 1.98 3.1156 4 0 1 3 29.60 12.22 3.0175 4 1 0 6 30.17 68.22 2.9622 1 2 2 6 30.81 8.54 2.9024 3 2 1 6 34.18 6.57 2.6230 3 1 2 6 34.75 100.00 2.5813 0 5 1 3 36.04 1.94 2.4920 0 4 2 3 36.59 3.87 2.4561 2 4 1 6 37.52 7.70 2.3970 0 0 3 1 37.82 13.38 2.3788 2 3 2 6 38.34 16.60 2.3475 5 1 1 6 39.09 2.90 2.3046 6 0 0 3 40.75 1.14 2.2142 5 2 0 6 41.18 11.52 2.1921 5 0 2 3 41.67 11.58 2.1676 4 3 1 6 42.51 5.03 2.1266 0 3 3 3 42.51 6.47 2.1266 3 0 3 3 42.78 6.00 2.1139 4 2 2 6 44.07 12.84 2.0550 2 2 3 6 44.33 40.65 2.0435 1 5 2 6 44.79 8.12 2.0235 1 6 1 6 45.44 3.74 1.9959 4 4 0 6 47.31 29.57 1.9214 3 4 2 6 47.75 1.73 1.9048 3 5 1 6 48.50 5.81 1.8769 1 4 3 6 49.17 7.16 1.8528 6 2 1 6 50.15 1.40 1.8190 6 1 2 6 51.24 1.63 1.7827 1 0 4 3 51.30 4.63 1.7810 3 3 3 6 52.60 2.17 1.7399 0 2 4 3 54.21 3.39 1.6920 2 6 2 6 55.30 15.11 1.6613 0 6 3 3 55.30 4.96 1.6613 6 0 3 3 55.91 13.68 1.6446 2 7 1 6 57.74 17.86 1.5967 5 5 0 6 57.81 3.27 1.5950 4 0 4 3 58.07 3.91 1.5883 4 5 2 6 58.45 2.16 1.5789 8 1 1 6 59.06 2.05 1.5641 3 2 4 6 59.70 3.73 1.5489 4 6 1 6 60.23 4.50 1.5364 9 0 0 3 60.56 5.56 1.5290 7 2 2 6 60.93 1.43 1.5206 7 3 1 6 61.46 3.70 1.5087 8 2 0 6 61.52 15.61 1.5073 0 5 4 3 62.73 3.88 1.4811 2 4 4 6 62.98 1.49 1.4758 1 8 2 6 63.93 15.87 1.4563 5 1 4 6 63.97 3.85 1.4553 1 7 3 6 63.97 1.14 1.4553 7 1 3 6 64.18 4.93 1.4512 6 4 2 6 65.05 5.33 1.4339 7 4 0 6 65.22 3.99 1.4305 0 1 5 3 65.71 6.53 1.4210 6 5 1 6 65.71 1.63 1.4210 1 9 1 6 66.28 10.60 1.4101 4 3 4 6 66.33 1.47 1.4092 3 6 3 6 66.33 4.25 1.4092 6 3 3 6 68.04 1.38 1.3780 3 8 1 6 69.18 10.25 1.3579 10 0 1 3 69.98 3.09 1.3444 5 6 2 6 70.81 4.17 1.3306 6 6 0 6 70.88 3.19 1.3296 3 5 4 6 70.92 4.04 1.3289 5 5 3 6 70.98 2.93 1.3279 0 4 5 3 71.94 10.62 1.3125 10 1 0 6 72.00 1.36 1.3115 6 2 4 6 72.11 1.95 1.3099 2 3 5 6 72.24 2.82 1.3078 8 3 2 6 72.58 1.44 1.3026 5 7 1 6 73.36 1.51 1.2906 0 10 2 3 73.69 1.59 1.2856 8 4 1 6 74.18 3.82 1.2784 9 3 0 6 74.28 2.58 1.2769 2 8 3 6 74.34 11.15 1.2760 5 0 5 3 75.34 2.93 1.2614 5 4 4 6 76.68 1.03 1.2428 7 5 2 6 77.01 3.82 1.2383 0 11 1 3 77.77 1.98 1.2280 4 8 2 6 78.10 1.33 1.2237 2 10 1 6 78.74 1.86 1.2154 3 4 5 6 80.07 1.75 1.1985 0 0 6 1 80.91 1.35 1.1882 6 1 5 6 81.36 3.26 1.1827 11 1 1 6 83.31 1.27 1.1599 3 0 6 3 84.08 5.45 1.1512 10 1 3 6 86.23 2.12 1.1280 9 3 3 6 89.39 2.24 1.0961 10 0 4 3 89.73 1.33 1.0928 3 3 6 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.