Arfvedsonite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050514 Hawthorne F C The Canadian Mineralogist 14 (1976) 346-356 The crystal chemistry of the amphiboles: V. The structure and chemistry of arfvedsonite CELL PARAMETERS: 10.00700 18.07700 5.332000 90.00000 104.1010 90.00000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.81 5.28 9.0236 0 2 0 10.47 100.00 8.4535 1 1 0 17.15 9.76 5.1719 0 0 1 17.41 16.88 5.0928 1 3 0 18.55 15.08 4.7841 2 0 0 19.68 10.67 4.5118 0 4 0 19.79 1.01 4.4871 0 2 1 21.02 4.13 4.2268 2 2 0 22.13 5.98 4.0161 -2 0 1 21.94 18.34 4.0516 1 1 1 22.91 1.92 3.8807 -1 3 1 26.05 58.55 3.4203 1 3 1 26.21 18.93 3.3999 0 4 1 27.16 33.84 3.2824 2 4 0 28.41 52.64 3.1407 3 1 0 29.64 10.42 3.0131 -3 1 1 29.77 11.62 2.9998 -2 4 1 29.69 1.25 3.0079 0 6 0 29.95 19.97 2.9823 2 2 1 31.74 23.91 2.8178 3 3 0 32.86 27.53 2.7246 -3 3 1 32.85 86.49 2.7256 1 5 1 34.06 1.42 2.6311 -1 1 2 34.48 55.95 2.6001 0 6 1 34.64 9.54 2.5882 2 4 1 35.23 2.29 2.5464 2 6 0 35.33 71.36 2.5394 -2 0 2 36.07 4.37 2.4894 1 7 0 36.12 1.13 2.4859 0 2 2 36.94 1.90 2.4324 -1 3 2 37.59 10.29 2.3920 4 0 0 37.34 4.02 2.4075 -2 6 1 37.62 6.06 2.3900 3 5 0 38.59 26.64 2.3323 -3 5 1 38.85 8.06 2.3169 -4 2 1 38.94 1.80 2.3122 4 2 0 38.45 1.11 2.3401 1 1 2 39.17 8.98 2.2989 -1 7 1 39.46 1.86 2.2825 3 3 1 39.65 17.72 2.2722 -3 1 2 40.76 5.79 2.2129 -2 4 2 41.18 2.11 2.1911 1 7 1 41.43 44.09 2.1786 2 6 1 42.20 9.89 2.1406 -3 3 2 42.19 2.82 2.1411 -1 5 2 42.69 5.52 2.1170 -4 4 1 43.51 22.69 2.0789 2 0 2 44.46 13.51 2.0367 3 5 1 45.13 14.88 2.0081 -4 0 2 46.51 1.27 1.9515 4 2 1 46.23 1.98 1.9626 1 9 0 46.96 3.52 1.9339 -3 5 2 47.77 2.64 1.9030 5 1 0 48.54 11.97 1.8747 -4 6 1 48.17 1.26 1.8881 2 4 2 49.07 1.03 1.8557 -5 3 1 48.80 1.67 1.8651 -1 9 1 49.67 2.56 1.8346 -4 4 2 49.88 3.43 1.8275 4 4 1 50.50 5.77 1.8062 1 9 1 50.55 9.98 1.8047 0 10 0 52.57 4.06 1.7400 -5 1 2 51.84 1.27 1.7627 -1 1 3 52.54 1.99 1.7408 1 7 2 53.35 2.20 1.7162 -5 5 1 53.90 1.13 1.7000 0 8 2 53.93 5.32 1.6991 -1 3 3 54.30 5.66 1.6886 2 10 0 54.13 2.99 1.6933 0 2 3 54.37 2.42 1.6865 -2 8 2 54.72 3.64 1.6765 -3 9 1 55.14 27.64 1.6647 4 6 1 56.00 3.26 1.6412 4 8 0 56.06 2.30 1.6395 -2 4 3 56.91 9.97 1.6171 1 11 0 57.78 5.89 1.5947 6 0 0 57.17 1.67 1.6104 0 4 3 57.97 18.55 1.5900 -1 5 3 58.38 5.49 1.5799 4 0 2 58.90 2.21 1.5671 2 10 1 60.11 1.10 1.5384 -6 4 1 60.56 12.78 1.5280 -6 0 2 60.36 1.17 1.5327 -3 5 3 60.56 2.25 1.5281 1 9 2 61.08 6.52 1.5163 5 5 1 60.96 20.65 1.5189 -2 6 3 61.82 1.78 1.4999 -4 8 2 61.92 1.42 1.4976 -4 4 3 61.63 8.89 1.5039 0 12 0 62.22 2.89 1.4911 4 4 2 62.01 4.50 1.4957 0 6 3 62.22 1.23 1.4913 2 2 3 62.45 1.48 1.4862 1 5 3 62.74 2.57 1.4799 0 10 2 63.17 6.09 1.4711 -2 10 2 64.33 1.52 1.4473 -6 4 2 63.75 3.90 1.4589 3 11 0 63.71 1.48 1.4599 -1 7 3 64.82 24.23 1.4375 -6 6 1 64.60 1.49 1.4418 -4 10 1 64.66 4.79 1.4407 4 10 0 65.58 2.15 1.4226 -5 3 3 66.56 2.14 1.4040 -4 6 3 67.58 9.22 1.3853 5 1 2 68.84 2.68 1.3630 7 1 0 69.20 4.19 1.3568 -5 5 3 68.85 3.67 1.3628 2 10 2 69.38 3.01 1.3538 5 3 2 69.54 6.54 1.3510 2 6 3 70.62 1.56 1.3329 7 3 0 70.06 2.93 1.3423 -4 10 2 69.77 5.31 1.3471 1 11 2 70.57 3.95 1.3338 -3 11 2 70.95 2.05 1.3275 -1 9 3 72.04 8.42 1.3101 -7 5 1 71.42 4.94 1.3199 -1 1 4 71.62 1.27 1.3168 1 13 1 72.68 1.36 1.3001 0 12 2 73.08 12.62 1.2940 -2 12 2 73.09 1.56 1.2938 3 5 3 73.18 2.45 1.2925 -1 3 4 73.15 4.30 1.2930 0 0 4 74.47 2.40 1.2732 4 12 0 74.71 5.83 1.2697 -4 0 4 77.30 2.41 1.2335 6 0 2 78.43 1.08 1.2185 2 12 2 80.20 2.97 1.1960 8 0 0 80.18 5.71 1.1963 -5 11 2 80.29 1.13 1.1950 6 10 0 80.79 1.16 1.1887 4 10 2 81.52 3.92 1.1800 2 0 4 82.70 3.22 1.1662 -6 10 2 83.37 1.41 1.1585 -8 4 2 86.02 1.05 1.1294 7 9 0 87.90 1.11 1.1100 -6 4 4 88.07 2.11 1.1084 3 1 4 88.70 2.78 1.1020 0 16 1 89.11 1.39 1.0980 5 5 3 90.02 2.14 1.0893 4 12 2 90.02 2.14 1.0893 4 12 2 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.