Muscovite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R040104 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: 5.2010 9.0220 20.0430 90.000 95.780 90.000 SPACE GROUP: C2/c ATOM X Y Z OCCUPANCY ISO(B) K 0.00000 0.09820 0.25000 0.930 1.682 Na 0.00000 0.09820 0.25000 0.070 1.682 Al 0.25110 0.08360 0.00010 0.915 0.628 Fe 0.25110 0.08360 0.00010 0.080 0.628 Al 0.46480 0.92940 0.13565 0.225 0.621 Si 0.46480 0.92940 0.13565 0.775 0.621 Al 0.45170 0.25840 0.13545 0.225 0.632 Si 0.45170 0.25840 0.13545 0.775 0.632 O 0.41700 0.09260 0.16830 1.000 1.198 O 0.25100 0.81120 0.15820 1.000 1.424 O 0.25100 0.37050 0.16900 1.000 1.239 O 0.45790 0.94380 0.05360 1.000 0.843 O 0.38580 0.25280 0.05370 1.000 1.052 OH 0.45650 0.56360 0.05030 0.915 0.944 F 0.45650 0.56360 0.05030 0.085 0.944 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: 3.484689375 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 8.87 96.93 9.9705 0 0 2 17.79 26.00 4.9853 0 0 4 19.68 6.64 4.5110 0 2 0 19.78 37.48 4.4887 1 1 0 19.89 98.21 4.4634 -1 1 1 20.18 12.06 4.3998 0 2 1 20.66 25.48 4.2994 1 1 1 21.62 23.06 4.1099 0 2 2 22.42 10.75 3.9654 1 1 2 22.92 64.02 3.8805 -1 1 3 23.84 60.74 3.7326 0 2 3 24.89 2.89 3.5778 1 1 3 25.52 84.25 3.4909 -1 1 4 26.65 61.18 3.3449 0 2 4 26.82 73.93 3.3235 0 0 6 27.88 78.40 3.1997 1 1 4 28.61 6.75 3.1198 -1 1 5 29.90 82.58 2.9879 0 2 5 31.28 56.17 2.8599 1 1 5 32.08 43.17 2.7902 -1 1 6 34.49 4.95 2.6001 1 3 0 34.56 37.50 2.5952 -1 3 1 34.67 18.70 2.5873 2 0 0 34.94 58.90 2.5680 -2 0 2 34.97 13.59 2.5660 1 1 6 35.03 100.00 2.5617 1 3 1 35.83 8.59 2.5063 -1 1 7 36.03 9.26 2.4926 0 0 8 36.46 24.80 2.4641 -1 3 3 36.76 12.89 2.4452 2 0 2 37.33 4.05 2.4086 0 2 7 37.52 16.65 2.3973 -2 0 4 37.78 40.08 2.3809 1 3 3 39.97 1.47 2.2555 0 4 0 40.03 10.24 2.2522 -2 2 1 40.18 3.69 2.2443 2 2 0 40.24 4.66 2.2412 0 4 1 40.44 9.34 2.2304 -1 3 5 40.85 10.42 2.2089 2 2 1 40.88 3.67 2.2073 2 0 4 41.03 6.33 2.1999 0 4 2 41.32 10.15 2.1850 -2 2 3 42.03 3.62 2.1497 2 2 2 42.04 22.47 2.1492 -2 0 6 42.32 4.33 2.1359 0 4 3 42.45 46.94 2.1294 1 3 5 43.68 6.50 2.0722 2 2 3 44.07 11.17 2.0550 0 4 4 44.56 4.09 2.0333 -2 2 5 45.49 34.46 1.9941 0 0 10 45.76 1.17 1.9827 2 2 4 46.06 25.31 1.9707 -1 3 7 46.61 12.59 1.9487 2 0 6 46.82 3.31 1.9402 -2 2 6 48.07 2.44 1.8929 -2 0 8 48.59 2.95 1.8738 1 3 7 48.80 3.66 1.8663 0 4 6 49.35 1.66 1.8466 -1 3 8 50.01 1.28 1.8239 0 2 10 51.69 1.65 1.7683 0 4 7 52.42 4.92 1.7454 -2 2 8 52.78 1.56 1.7343 -1 1 11 52.92 14.42 1.7302 -1 3 9 53.56 5.95 1.7111 2 0 8 53.81 1.22 1.7038 1 5 0 53.85 1.21 1.7024 -1 5 1 53.93 4.50 1.7002 2 4 0 54.00 1.31 1.6982 -3 1 2 54.18 1.33 1.6928 1 5 1 54.19 2.07 1.6925 2 2 7 54.56 4.96 1.6820 -3 1 3 54.84 2.60 1.6739 -2 4 3 55.26 19.46 1.6625 -2 0 10 55.42 6.61 1.6579 2 4 2 55.86 40.16 1.6458 1 3 9 55.94 5.97 1.6436 3 1 2 55.98 5.21 1.6427 -2 4 4 56.17 2.89 1.6374 1 5 3 56.50 11.83 1.6288 -1 5 4 56.77 2.26 1.6216 2 4 3 56.91 10.45 1.6180 -3 1 5 57.45 5.15 1.6041 3 1 3 57.50 8.57 1.6027 -2 4 5 57.62 3.94 1.5998 2 2 8 57.76 4.95 1.5961 1 5 4 58.67 3.34 1.5737 -3 1 6 59.24 3.34 1.5599 -2 2 10 59.26 1.22 1.5593 0 2 12 59.32 8.91 1.5578 3 1 4 59.40 5.79 1.5559 -2 4 6 59.72 2.99 1.5484 1 5 5 60.21 4.87 1.5370 -1 5 6 60.60 2.65 1.5279 2 4 5 60.79 22.33 1.5237 -1 3 11 61.14 2.06 1.5159 1 1 12 61.50 9.57 1.5077 2 0 10 61.69 23.80 1.5037 0 6 0 61.77 50.38 1.5019 -3 3 1 61.88 2.17 1.4994 0 6 1 62.03 3.40 1.4962 1 5 6 62.13 1.41 1.4940 0 4 10 62.42 1.83 1.4878 -3 3 3 62.46 2.64 1.4869 0 6 2 62.67 3.31 1.4824 3 3 1 63.04 1.25 1.4746 -2 2 11 63.04 4.35 1.4746 2 4 6 63.41 2.44 1.4670 -2 0 12 64.09 5.63 1.4530 1 3 11 64.12 3.57 1.4523 0 2 13 64.67 1.63 1.4413 1 5 7 65.25 5.57 1.4300 2 2 10 65.54 2.24 1.4244 0 0 14 66.02 1.68 1.4151 -3 1 9 66.07 1.79 1.4142 1 1 13 66.13 1.92 1.4130 0 4 11 67.14 1.26 1.3941 -2 4 9 67.19 2.11 1.3932 -1 1 14 68.20 1.99 1.3750 -3 3 7 68.49 1.58 1.3700 0 6 6 69.43 5.51 1.3536 2 2 11 69.56 27.88 1.3514 -1 3 13 70.35 12.98 1.3383 2 0 12 70.37 9.36 1.3379 0 4 12 71.18 1.56 1.3247 1 1 14 71.39 5.97 1.3213 -2 2 13 72.35 1.53 1.3061 -1 1 15 72.64 2.60 1.3016 -2 6 1 72.74 5.79 1.3001 2 6 0 72.76 3.98 1.2997 -4 0 2 72.90 13.67 1.2976 -2 6 2 73.16 6.81 1.2936 4 0 0 73.17 7.73 1.2935 -3 3 9 73.21 1.83 1.2928 1 3 13 73.56 6.04 1.2875 0 6 8 74.11 8.31 1.2794 3 3 7 74.49 7.45 1.2738 -2 6 4 74.86 3.12 1.2684 0 4 13 74.98 4.35 1.2667 4 0 2 75.93 2.15 1.2532 -2 2 14 76.15 5.32 1.2501 -1 7 1 76.24 1.41 1.2489 -4 2 2 76.24 3.06 1.2488 -4 0 6 76.27 1.32 1.2484 -3 5 2 76.42 3.97 1.2463 0 0 16 76.58 1.63 1.2442 0 6 9 76.63 1.29 1.2435 4 2 0 76.68 5.50 1.2427 2 6 4 76.74 3.66 1.2419 -3 5 3 77.28 2.08 1.2346 -1 7 3 77.91 3.38 1.2263 3 5 2 78.10 3.49 1.2237 1 7 3 78.29 5.27 1.2212 -4 2 5 78.55 3.73 1.2178 2 2 13 78.73 1.53 1.2155 -3 5 5 79.40 3.09 1.2069 -3 3 11 79.46 2.46 1.2061 1 7 4 79.67 1.16 1.2035 -4 2 6 79.83 1.18 1.2015 4 2 3 79.90 1.85 1.2006 0 6 10 80.24 2.09 1.1964 -3 5 6 80.54 2.21 1.1926 3 3 9 80.73 1.80 1.1903 -2 2 15 80.81 4.66 1.1894 3 5 4 81.16 2.31 1.1851 1 7 5 81.38 2.17 1.1824 -4 2 7 81.51 2.87 1.1809 3 1 11 81.58 1.88 1.1800 4 2 4 81.72 1.07 1.1783 -2 4 13 83.29 1.09 1.1601 1 3 15 83.31 1.12 1.1600 -1 1 17 83.67 1.29 1.1558 4 2 5 83.69 3.04 1.1555 -1 7 7 85.88 1.10 1.1317 3 1 12 86.08 1.26 1.1295 2 6 8 86.11 3.75 1.1292 -2 4 14 86.78 1.30 1.1222 4 4 0 87.40 1.22 1.1159 -4 4 4 87.47 10.24 1.1152 -2 6 10 87.87 1.81 1.1111 -1 5 14 88.61 5.50 1.1037 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.