Margarite-2M1 Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060839 Guggenheim S, Bailey S W American Mineralogist 60 (1975) 1023-1029 Refinement of the margarite structure in subgroup symmetry CELL PARAMETERS: 5.103800 8.828700 19.14800 90.00000 95.46000 90.00000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.29 4.33 9.5378 0 0 2 18.62 3.87 4.7689 0 0 4 20.03 6.51 4.4362 0 2 0 20.12 14.19 4.4156 1 1 0 20.28 55.14 4.3828 -1 1 1 20.57 3.35 4.3209 0 2 1 21.04 22.88 4.2252 1 1 1 22.11 14.52 4.0224 0 2 2 22.90 8.24 3.8855 1 1 2 23.56 39.39 3.7773 -1 1 3 24.48 33.69 3.6382 0 2 3 25.51 2.17 3.4931 1 1 3 26.35 51.92 3.3836 -1 1 4 27.47 49.42 3.2481 0 2 4 28.07 65.20 3.1793 0 0 6 28.68 60.47 3.1133 1 1 4 29.65 3.84 3.0137 -1 1 5 30.92 60.24 2.8926 0 2 5 32.26 40.48 2.7748 1 1 5 33.33 36.45 2.6885 -1 1 6 34.71 1.37 2.5842 0 2 6 35.09 3.06 2.5573 1 3 0 35.26 12.37 2.5454 2 0 0 35.18 31.31 2.5508 -1 3 1 35.62 58.34 2.5204 -2 0 2 35.65 100.00 2.5186 1 3 1 36.16 14.83 2.4838 1 1 6 37.30 7.54 2.4105 -1 1 7 37.26 32.49 2.4132 -1 3 3 37.43 19.52 2.4025 2 0 2 38.45 4.98 2.3409 -2 0 4 38.57 11.83 2.3339 1 3 3 38.78 7.38 2.3220 0 2 7 40.31 1.00 2.2372 1 1 7 40.74 2.87 2.2143 -2 2 1 40.87 1.71 2.2078 2 2 0 40.96 1.45 2.2033 0 4 1 41.51 2.45 2.1752 -1 1 8 41.56 3.65 2.1726 2 2 1 41.55 17.10 2.1732 -1 3 5 41.79 6.32 2.1610 2 0 4 41.81 2.98 2.1604 0 4 2 42.19 6.60 2.1417 -2 2 3 42.80 3.27 2.1126 2 2 2 43.19 5.53 2.0943 0 4 3 43.34 24.16 2.0872 -2 0 6 43.54 48.28 2.0783 1 3 5 44.54 9.74 2.0338 2 2 3 45.07 13.33 2.0112 0 4 4 45.72 9.93 1.9839 -2 2 5 47.40 3.91 1.9176 0 4 5 47.66 23.28 1.9076 0 0 10 47.56 9.70 1.9113 -1 3 7 47.86 5.88 1.9000 2 0 6 48.17 5.58 1.8886 -2 2 6 49.37 2.36 1.8454 2 2 5 49.81 1.91 1.8301 -2 0 8 50.07 3.40 1.8214 1 3 7 52.18 1.71 1.7524 0 2 10 52.37 1.50 1.7466 2 2 6 54.20 1.77 1.6918 -2 2 8 54.89 14.83 1.6720 -1 3 9 54.88 2.29 1.6723 2 4 0 55.24 7.72 1.6624 2 0 8 55.16 1.14 1.6646 1 5 1 55.35 1.06 1.6593 -1 5 2 55.66 3.03 1.6509 -3 1 3 55.95 2.46 1.6430 -2 4 3 56.44 4.54 1.6297 2 4 2 56.96 5.43 1.6162 3 1 2 57.19 2.93 1.6101 -2 4 4 57.28 1.84 1.6078 1 5 3 57.50 14.61 1.6021 -2 0 10 57.80 30.88 1.5945 1 3 9 57.72 8.93 1.5967 -1 5 4 58.00 3.58 1.5896 0 0 12 57.87 1.69 1.5927 2 4 3 58.26 6.55 1.5831 -3 1 5 58.54 4.39 1.5762 3 1 3 58.86 8.01 1.5684 -2 4 5 58.98 3.02 1.5655 1 5 4 59.35 3.22 1.5567 2 2 8 60.18 1.98 1.5370 -3 1 6 60.53 7.82 1.5291 3 1 4 60.93 4.67 1.5201 -2 4 6 61.08 2.71 1.5166 1 5 5 61.52 2.37 1.5068 -2 2 10 61.73 5.32 1.5020 -1 5 6 61.95 2.01 1.4973 2 4 5 62.90 60.20 1.4770 -3 3 1 62.82 28.63 1.4787 0 6 0 63.03 1.82 1.4743 0 6 1 63.30 44.75 1.4685 -1 3 11 63.37 1.29 1.4672 -2 4 7 63.68 19.91 1.4607 2 0 10 63.55 2.22 1.4634 1 5 6 64.39 3.67 1.4463 0 4 10 64.56 2.96 1.4430 2 4 6 67.16 2.03 1.3931 0 2 13 67.48 2.44 1.3874 2 2 10 68.19 1.48 1.3747 -3 1 9 68.88 1.09 1.3625 0 0 14 69.08 1.38 1.3590 1 1 13 70.05 5.71 1.3426 -3 3 7 70.16 4.71 1.3408 0 6 6 70.43 3.90 1.3363 3 3 5 70.59 2.02 1.3336 -1 1 14 71.95 1.03 1.3117 2 2 11 72.70 9.06 1.3001 -1 3 13 73.12 5.41 1.2936 2 0 12 73.22 2.46 1.2921 0 4 12 74.18 1.80 1.2777 -4 0 2 74.03 1.06 1.2799 -2 6 1 74.12 2.05 1.2786 2 6 0 74.54 2.46 1.2725 1 1 14 74.52 4.41 1.2727 4 0 0 74.34 10.35 1.2754 -2 6 2 74.58 1.73 1.2719 -2 2 13 75.47 1.18 1.2591 -3 3 9 75.83 1.22 1.2540 3 1 9 75.64 1.46 1.2567 0 6 8 75.94 1.07 1.2523 -2 0 14 75.96 2.33 1.2522 3 3 7 76.11 2.50 1.2500 -1 1 15 76.33 2.24 1.2470 1 3 13 76.10 1.90 1.2502 -2 6 4 76.40 1.40 1.2459 4 0 2 77.64 3.16 1.2292 -1 7 1 78.04 2.15 1.2238 0 4 13 78.15 1.62 1.2225 0 2 15 78.12 1.77 1.2228 -4 0 6 78.33 2.67 1.2201 -3 5 3 78.31 2.98 1.2204 2 6 4 78.89 1.64 1.2128 -1 7 3 79.48 1.19 1.2052 -2 2 14 79.43 2.39 1.2059 3 5 2 79.37 1.44 1.2066 -2 6 6 79.71 2.02 1.2024 1 7 3 80.10 3.22 1.1975 -4 2 5 80.52 2.09 1.1922 0 0 16 80.55 1.39 1.1919 -3 5 5 81.17 2.65 1.1843 1 7 4 81.43 1.05 1.1813 4 2 3 81.73 3.35 1.1777 2 2 13 81.63 1.09 1.1788 -4 2 6 82.27 4.45 1.1713 -3 3 11 82.22 1.41 1.1719 -3 5 6 82.52 4.61 1.1684 3 5 4 82.49 3.86 1.1687 0 6 10 82.87 4.38 1.1644 3 3 9 83.16 1.21 1.1610 0 4 14 83.01 2.22 1.1628 1 7 5 83.29 1.82 1.1595 4 2 4 83.54 3.22 1.1567 -4 2 7 84.01 1.06 1.1514 0 2 16 84.25 1.36 1.1488 3 1 11 84.68 2.88 1.1440 -2 2 15 85.52 1.26 1.1349 4 2 5 85.89 2.04 1.1309 -1 7 7 88.18 1.38 1.1073 -3 1 14 88.20 1.12 1.1072 -4 4 2 88.43 1.98 1.1049 2 6 8 88.59 1.22 1.1032 0 4 15 88.59 1.22 1.1032 0 4 15 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.