Howieite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R061009 Wenk H R American Mineralogist 59 (1974) 86-97 Howieite, a new type of chain silicate CELL PARAMETERS: 10.17000 9.774000 9.589000 91.22000 70.76000 108.0900 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.63 100.00 9.1902 0 1 0 9.80 3.26 9.0301 1 0 0 9.78 5.58 9.0528 0 0 1 11.19 1.93 7.9100 1 0 1 11.17 62.91 7.9265 -1 1 0 13.04 4.40 6.7917 1 -1 1 15.93 3.06 5.5649 1 1 0 16.09 10.84 5.5091 -1 0 1 18.14 3.67 4.8912 2 -1 1 18.45 27.49 4.8086 -1 2 0 18.67 11.73 4.7517 2 0 1 18.63 3.48 4.7616 1 0 2 18.72 1.39 4.7394 -2 1 0 19.32 18.81 4.5951 0 2 0 19.66 2.19 4.5151 2 0 0 20.22 7.12 4.3918 1 -1 2 20.83 4.52 4.2632 -1 -1 1 20.92 1.26 4.2458 0 2 1 21.13 6.36 4.2048 0 1 2 21.77 2.15 4.0810 1 1 2 21.74 1.70 4.0878 -1 2 1 22.43 1.43 3.9637 0 -2 1 22.43 15.86 3.9633 -2 2 0 23.61 1.46 3.7673 2 1 1 23.81 1.75 3.7360 -2 1 1 24.47 12.96 3.6363 1 2 1 24.54 19.05 3.6274 1 2 0 24.90 7.12 3.5755 -2 0 1 26.19 4.85 3.4012 3 -1 1 26.43 3.06 3.3712 0 2 2 26.55 8.85 3.3568 -2 2 1 27.37 50.71 3.2571 -1 3 0 27.80 1.76 3.2088 3 0 1 28.32 3.14 3.1502 -1 -2 1 28.33 1.29 3.1490 -1 2 2 28.13 4.47 3.1710 3 -2 1 29.14 3.73 3.0634 0 3 0 29.13 25.72 3.0644 -2 3 0 29.12 2.39 3.0654 1 -1 3 29.67 5.09 3.0100 3 0 0 29.34 1.30 3.0433 2 0 3 29.43 11.10 3.0344 -3 2 0 29.59 4.41 3.0176 0 0 3 29.69 1.89 3.0079 1 1 3 29.56 3.43 3.0210 2 -1 3 30.37 5.25 2.9421 0 1 3 31.01 6.34 2.8830 2 2 1 31.61 10.09 2.8296 0 -3 1 32.16 38.76 2.7825 2 2 0 32.72 1.31 2.7356 2 -3 2 33.18 76.26 2.6992 3 -1 3 33.50 2.10 2.6737 1 -2 3 33.78 2.14 2.6521 -3 2 1 34.34 18.61 2.6102 3 1 0 33.99 6.20 2.6367 3 0 3 33.91 1.26 2.6422 -3 3 0 34.13 71.05 2.6257 -1 1 3 34.50 1.67 2.5985 1 2 3 34.43 9.57 2.6035 -1 0 3 35.14 1.15 2.5531 3 -3 2 36.63 1.54 2.4525 -1 2 3 36.99 2.87 2.4293 0 -2 3 37.70 2.16 2.3849 2 2 3 37.39 4.70 2.4043 -2 4 0 37.95 13.57 2.3697 -4 2 0 39.19 1.11 2.2976 0 4 0 38.58 1.54 2.3325 2 -3 3 39.14 1.15 2.3007 4 -3 1 39.92 3.16 2.2575 4 0 0 40.10 1.31 2.2474 0 3 3 40.81 32.84 2.2100 2 3 0 40.00 12.60 2.2529 1 -3 3 39.80 1.35 2.2639 3 -3 3 41.03 4.15 2.1987 3 2 0 40.14 16.76 2.2453 4 -2 3 41.29 13.16 2.1855 1 3 3 41.47 1.80 2.1763 -1 3 3 41.57 14.86 2.1713 -2 2 3 42.73 1.13 2.1151 -1 -2 3 43.18 1.51 2.0940 3 2 3 43.81 9.40 2.0653 1 4 0 43.47 17.13 2.0809 4 -3 3 44.62 2.01 2.0299 4 1 3 44.87 1.28 2.0192 2 3 3 44.75 1.14 2.0239 -2 -1 3 45.21 14.79 2.0048 -2 3 3 47.39 1.13 1.9172 -5 2 0 47.93 2.75 1.8971 1 -4 3 49.09 2.93 1.8550 3 3 0 49.42 2.18 1.8434 1 4 3 49.22 2.34 1.8502 4 1 4 49.06 4.04 1.8559 -5 3 0 48.78 3.22 1.8660 4 -4 3 49.15 1.68 1.8528 5 -3 3 50.74 4.02 1.7984 -2 4 3 50.71 1.15 1.7991 -4 3 2 50.90 2.20 1.7931 -3 3 3 51.81 1.69 1.7636 -1 -2 4 53.04 4.77 1.7257 5 1 3 53.31 6.52 1.7173 -3 -1 3 52.74 3.26 1.7348 -5 4 0 54.17 15.27 1.6923 1 5 0 54.11 1.04 1.6938 -2 -1 4 53.34 6.40 1.7166 5 -4 3 54.04 1.16 1.6959 3 -5 3 54.47 5.10 1.6837 2 -5 3 55.33 6.83 1.6593 -3 4 3 55.69 2.01 1.6497 6 -1 3 56.32 5.81 1.6327 0 5 3 56.45 1.34 1.6292 5 1 4 56.78 2.20 1.6205 -4 1 3 57.03 1.68 1.6141 -2 -3 3 57.57 1.42 1.6000 4 3 3 56.40 1.09 1.6304 6 -3 3 57.24 1.13 1.6085 -3 1 4 57.24 20.09 1.6084 2 0 6 57.46 4.34 1.6029 -3 6 0 58.21 10.82 1.5839 6 0 3 58.81 6.59 1.5692 5 2 3 58.75 6.85 1.5708 -3 -2 3 57.87 2.32 1.5926 2 -1 6 58.38 1.10 1.5798 -6 3 0 58.95 8.64 1.5659 -4 0 3 58.04 2.30 1.5881 3 -1 6 58.52 1.85 1.5763 2 1 6 58.99 1.01 1.5648 1 1 6 60.40 3.31 1.5317 0 6 0 59.21 7.23 1.5596 5 -5 3 59.89 1.40 1.5436 3 -2 6 61.58 1.10 1.5050 6 0 0 61.40 5.05 1.5092 -3 5 3 61.46 1.40 1.5078 1 2 6 62.50 4.78 1.4850 6 1 3 62.90 4.91 1.4767 -4 -1 3 62.67 1.05 1.4815 -1 5 4 63.98 9.45 1.4544 2 -6 3 63.51 1.68 1.4639 3 -3 6 64.34 2.76 1.4470 7 -2 3 65.22 2.77 1.4297 -2 -4 3 66.03 3.20 1.4140 4 4 3 65.96 8.97 1.4153 0 6 3 66.20 1.92 1.4108 6 1 0 64.94 1.86 1.4350 7 -3 3 65.64 1.81 1.4214 1 3 6 65.79 2.38 1.4187 -5 2 3 65.41 9.30 1.4259 -6 5 0 66.69 2.04 1.4016 -5 3 3 66.85 5.61 1.3987 0 -2 6 67.52 4.41 1.3864 4 2 6 67.40 2.62 1.3886 -3 7 0 68.67 1.70 1.3660 5 3 0 68.50 1.09 1.3689 -7 2 0 68.37 2.82 1.3712 5 1 6 68.58 1.61 1.3675 -1 -1 6 70.08 3.28 1.3418 -7 1 0 68.92 2.16 1.3616 4 -4 6 69.62 2.39 1.3496 6 -2 6 71.37 1.02 1.3207 -2 1 6 71.83 1.37 1.3135 0 4 6 71.35 4.83 1.3211 -6 6 0 71.87 2.19 1.3128 -2 2 6 72.04 1.70 1.3101 0 -3 6 72.62 1.12 1.3011 -1 -2 6 73.34 3.70 1.2900 7 0 0 73.00 1.18 1.2952 5 2 6 73.27 1.40 1.2911 4 3 6 72.92 3.34 1.2964 3 -7 3 73.73 1.64 1.2842 1 -4 6 75.22 2.76 1.2624 -1 7 3 75.79 1.69 1.2543 3 4 6 79.92 3.53 1.1996 -8 3 0 79.71 1.97 1.2021 -4 8 0 79.79 1.19 1.2011 7 -4 6 81.44 3.85 1.1810 1 -5 6 83.32 1.40 1.1590 -3 4 6 84.00 3.49 1.1513 3 5 6 88.40 1.10 1.1050 4 6 0 88.40 1.10 1.1050 4 6 0 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.