Muscovite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R040124 Guggenheim S, Chang Y H, Koster van Groos A F American Mineralogist 72 (1987) 537-550 Muscovite dehydroxylation: High-temperature studies Sample: T = 20 deg C, from Diamond mine, Keystone, South Dakota CELL PARAMETERS: 5.2020 9.0300 20.0600 90.000 95.750 90.000 SPACE GROUP: C2/c ATOM X Y Z OCCUPANCY ISO(B) K 0.00000 0.09820 0.25000 0.930 1.684 Na 0.00000 0.09820 0.25000 0.070 1.684 Al 0.25110 0.08360 0.00010 0.915 0.629 Fe 0.25110 0.08360 0.00010 0.080 0.629 Al 0.46480 0.92940 0.13565 0.225 0.622 Si 0.46480 0.92940 0.13565 0.775 0.622 Al 0.45170 0.25840 0.13545 0.225 0.633 Si 0.45170 0.25840 0.13545 0.775 0.633 O 0.41700 0.09260 0.16830 1.000 1.200 O 0.25100 0.81120 0.15820 1.000 1.426 O 0.25100 0.37050 0.16900 1.000 1.241 O 0.45790 0.94380 0.05360 1.000 0.845 O 0.38580 0.25280 0.05370 1.000 1.054 OH 0.45650 0.56360 0.05030 0.915 0.945 F 0.45650 0.56360 0.05030 0.085 0.945 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 8 +/- 18 MAX. ABS. INTENSITY / VOLUME**2: 3.478784112 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 8.86 96.90 9.9795 0 0 2 17.78 26.00 4.9898 0 0 4 19.66 6.64 4.5150 0 2 0 19.77 37.43 4.4905 1 1 0 19.89 98.07 4.4649 -1 1 1 20.16 12.06 4.4037 0 2 1 20.65 25.46 4.3016 1 1 1 21.60 23.06 4.1136 0 2 2 22.41 10.74 3.9680 1 1 2 22.91 63.93 3.8818 -1 1 3 23.82 60.75 3.7359 0 2 3 24.87 2.89 3.5805 1 1 3 25.51 84.15 3.4922 -1 1 4 26.63 61.19 3.3479 0 2 4 26.80 73.95 3.3265 0 0 6 27.86 78.41 3.2023 1 1 4 28.60 6.75 3.1212 -1 1 5 29.88 82.62 2.9906 0 2 5 31.25 56.19 2.8624 1 1 5 32.06 43.14 2.7916 -1 1 6 34.47 4.95 2.6020 1 3 0 34.54 37.49 2.5970 -1 3 1 34.66 18.67 2.5879 2 0 0 34.93 58.79 2.5684 -2 0 2 34.93 13.60 2.5683 1 1 6 35.00 100.00 2.5637 1 3 1 35.81 8.59 2.5077 -1 1 7 36.00 9.26 2.4949 0 0 8 36.44 24.81 2.4657 -1 3 3 36.74 12.88 2.4462 2 0 2 37.30 4.05 2.4108 0 2 7 37.51 16.62 2.3976 -2 0 4 37.75 40.09 2.3829 1 3 3 39.94 1.47 2.2575 0 4 0 40.02 10.23 2.2530 -2 2 1 40.16 3.68 2.2452 2 2 0 40.20 4.67 2.2432 0 4 1 40.41 9.33 2.2318 -1 3 5 40.83 10.41 2.2099 2 2 1 40.86 3.66 2.2087 2 0 4 40.99 6.34 2.2019 0 4 2 41.31 10.13 2.1857 -2 2 3 42.01 3.62 2.1508 2 2 2 42.03 22.43 2.1496 -2 0 6 42.28 4.34 2.1378 0 4 3 42.41 47.00 2.1312 1 3 5 43.65 6.50 2.0735 2 2 3 44.03 11.17 2.0568 0 4 4 44.55 4.09 2.0339 -2 2 5 45.44 34.51 1.9959 0 0 10 45.73 1.17 1.9840 2 2 4 46.02 25.31 1.9721 -1 3 7 46.57 12.59 1.9501 2 0 6 46.81 3.31 1.9409 -2 2 6 48.05 2.44 1.8934 -2 0 8 48.54 2.96 1.8755 1 3 7 48.75 3.66 1.8680 0 4 6 49.31 1.66 1.8479 -1 3 8 49.96 1.28 1.8255 0 2 10 51.64 1.66 1.7699 0 4 7 52.40 4.92 1.7461 -2 2 8 52.74 1.56 1.7355 -1 1 11 52.88 14.42 1.7314 -1 3 9 53.51 5.95 1.7125 2 0 8 53.76 1.22 1.7052 1 5 0 53.81 1.21 1.7038 -1 5 1 53.89 4.50 1.7012 2 4 0 53.99 1.31 1.6985 -3 1 2 54.13 1.33 1.6943 1 5 1 54.15 2.07 1.6939 2 2 7 54.55 4.96 1.6823 -3 1 3 54.81 2.60 1.6749 -2 4 3 55.23 19.44 1.6631 -2 0 10 55.38 6.61 1.6590 2 4 2 55.81 40.20 1.6474 1 3 9 55.92 5.96 1.6442 3 1 2 55.94 5.21 1.6436 -2 4 4 56.12 2.89 1.6388 1 5 3 56.45 11.84 1.6301 -1 5 4 56.73 2.26 1.6227 2 4 3 56.90 10.43 1.6182 -3 1 5 57.42 5.14 1.6048 3 1 3 57.47 8.56 1.6036 -2 4 5 57.56 3.94 1.6012 2 2 8 57.71 4.96 1.5975 1 5 4 58.66 3.34 1.5739 -3 1 6 59.20 1.22 1.5607 0 2 12 59.21 3.34 1.5606 -2 2 10 59.29 8.90 1.5586 3 1 4 59.37 5.79 1.5568 -2 4 6 59.66 2.99 1.5497 1 5 5 60.16 4.88 1.5382 -1 5 6 60.55 2.65 1.5291 2 4 5 60.74 22.34 1.5248 -1 3 11 61.07 2.06 1.5173 1 1 12 61.44 9.58 1.5090 2 0 10 61.63 23.83 1.5050 0 6 0 61.74 50.33 1.5024 -3 3 1 61.82 2.17 1.5007 0 6 1 61.97 3.40 1.4975 1 5 6 62.07 1.41 1.4953 0 4 10 62.40 1.83 1.4883 -3 3 3 62.40 2.64 1.4882 0 6 2 62.64 3.31 1.4831 3 3 1 62.99 4.35 1.4757 2 4 6 63.01 1.25 1.4753 -2 2 11 63.37 2.44 1.4677 -2 0 12 64.02 5.64 1.4544 1 3 11 64.06 3.57 1.4536 0 2 13 64.60 1.63 1.4426 1 5 7 65.18 5.58 1.4312 2 2 10 65.47 2.24 1.4256 0 0 14 65.99 1.79 1.4156 1 1 13 66.00 1.68 1.4154 -3 1 9 66.06 1.92 1.4143 0 4 11 67.10 1.26 1.3949 -2 4 9 67.14 2.11 1.3942 -1 1 14 68.18 1.99 1.3754 -3 3 7 68.42 1.58 1.3712 0 6 6 69.36 5.51 1.3548 2 2 11 69.50 27.90 1.3524 -1 3 13 70.27 13.00 1.3395 2 0 12 70.30 9.37 1.3391 0 4 12 71.10 1.56 1.3260 1 1 14 71.34 5.97 1.3220 -2 2 13 72.28 1.53 1.3071 -1 1 15 72.58 2.60 1.3025 -2 6 1 72.68 5.79 1.3010 2 6 0 72.75 3.97 1.2999 -4 0 2 72.84 13.67 1.2985 -2 6 2 73.13 1.83 1.2941 1 3 13 73.14 6.79 1.2940 4 0 0 73.14 7.72 1.2939 -3 3 9 73.49 6.04 1.2887 0 6 8 74.05 8.31 1.2803 3 3 7 74.43 7.45 1.2747 -2 6 4 74.78 3.13 1.2695 0 4 13 74.95 4.34 1.2671 4 0 2 75.88 2.15 1.2539 -2 2 14 76.07 5.33 1.2511 -1 7 1 76.21 1.41 1.2492 -4 2 2 76.22 1.31 1.2491 -3 5 2 76.23 3.06 1.2490 -4 0 6 76.34 3.97 1.2474 0 0 16 76.49 1.63 1.2453 0 6 9 76.60 1.28 1.2439 4 2 0 76.61 5.50 1.2437 2 6 4 76.69 3.65 1.2426 -3 5 3 77.21 2.08 1.2356 -1 7 3 77.85 3.38 1.2270 3 5 2 78.02 3.49 1.2247 1 7 3 78.27 5.26 1.2214 -4 2 5 78.46 3.74 1.2189 2 2 13 78.68 1.53 1.2161 -3 5 5 79.37 3.09 1.2073 -3 3 11 79.37 2.46 1.2072 1 7 4 79.65 1.16 1.2037 -4 2 6 79.79 1.18 1.2020 4 2 3 79.81 1.86 1.2017 0 6 10 80.19 2.09 1.1969 -3 5 6 80.47 2.21 1.1935 3 3 9 80.68 1.80 1.1910 -2 2 15 80.74 4.66 1.1901 3 5 4 81.07 2.31 1.1862 1 7 5 81.37 2.17 1.1826 -4 2 7 81.43 2.87 1.1818 3 1 11 81.54 1.88 1.1806 4 2 4 81.66 1.07 1.1791 -2 4 13 83.19 1.09 1.1612 1 3 15 83.23 1.12 1.1608 -1 1 17 83.61 3.04 1.1565 -1 7 7 83.62 1.29 1.1564 4 2 5 85.79 1.10 1.1326 3 1 12 85.99 1.26 1.1305 2 6 8 86.04 3.75 1.1299 -2 4 14 86.74 1.30 1.1226 4 4 0 87.36 1.21 1.1162 -4 4 4 87.39 10.23 1.1159 -2 6 10 87.78 1.81 1.1119 -1 5 14 88.55 5.50 1.1043 4 0 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.