Muscovite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R050080 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: 5.1770 8.9940 20.1460 90.000 95.700 90.000 SPACE GROUP: C2/c ATOM X Y Z OCCUPANCY ISO(B) K 0.00000 0.09820 0.25000 0.930 1.678 Na 0.00000 0.09820 0.25000 0.070 1.678 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 1.196 O 0.25100 0.81120 0.15820 1.000 1.423 O 0.25100 0.37050 0.16900 1.000 1.238 O 0.45790 0.94380 0.05360 1.000 0.845 O 0.38580 0.25280 0.05370 1.000 1.052 OH 0.45650 0.56360 0.05030 0.915 0.942 F 0.45650 0.56360 0.05030 0.085 0.942 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: 3.467739544 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 8.82 98.99 10.0232 0 0 2 17.70 26.63 5.0116 0 0 4 19.74 6.66 4.4970 0 2 0 19.86 37.42 4.4701 1 1 0 19.97 98.11 4.4451 -1 1 1 20.24 12.08 4.3879 0 2 1 20.73 25.51 4.2852 1 1 1 21.66 23.18 4.1030 0 2 2 22.47 10.79 3.9576 1 1 2 22.96 64.31 3.8729 -1 1 3 23.85 61.26 3.7308 0 2 3 24.90 2.91 3.5757 1 1 3 25.53 84.93 3.4886 -1 1 4 26.63 61.90 3.3471 0 2 4 26.68 75.82 3.3411 0 0 6 27.87 79.33 3.2017 1 1 4 28.60 6.83 3.1214 -1 1 5 29.86 83.81 2.9926 0 2 5 31.23 57.01 2.8645 1 1 5 32.03 43.81 2.7941 -1 1 6 34.62 4.95 2.5911 1 3 0 34.69 37.44 2.5862 -1 3 1 34.83 18.61 2.5757 2 0 0 34.88 13.83 2.5720 1 1 6 35.10 58.66 2.5566 -2 0 2 35.14 100.00 2.5536 1 3 1 35.75 8.74 2.5117 -1 1 7 35.84 9.47 2.5058 0 0 8 36.56 24.78 2.4576 -1 3 3 36.88 12.85 2.4370 2 0 2 37.22 4.14 2.4156 0 2 7 37.65 16.66 2.3894 -2 0 4 37.86 40.23 2.3762 1 3 3 40.10 1.46 2.2485 0 4 0 40.21 10.16 2.2427 -2 2 1 40.35 3.65 2.2351 2 2 0 40.36 4.65 2.2345 0 4 1 40.50 9.40 2.2275 -1 3 5 40.96 3.69 2.2036 2 0 4 41.02 10.36 2.2005 2 2 1 41.14 6.32 2.1940 0 4 2 41.48 10.10 2.1768 -2 2 3 42.12 22.53 2.1455 -2 0 6 42.18 3.62 2.1426 2 2 2 42.42 4.34 2.1311 0 4 3 42.47 47.31 2.1283 1 3 5 43.80 6.51 2.0667 2 2 3 44.15 11.22 2.0515 0 4 4 44.69 4.10 2.0279 -2 2 5 45.23 35.57 2.0046 0 0 10 45.86 1.17 1.9788 2 2 4 46.05 25.58 1.9710 -1 3 7 46.61 12.71 1.9485 2 0 6 46.92 3.33 1.9364 -2 2 6 48.08 2.46 1.8925 -2 0 8 48.55 2.99 1.8753 1 3 7 48.82 3.69 1.8654 0 4 6 49.31 1.68 1.8480 -1 3 8 49.80 1.31 1.8310 0 2 10 51.69 1.67 1.7685 0 4 7 52.46 4.96 1.7443 -2 2 8 52.57 1.60 1.7408 -1 1 11 52.85 14.64 1.7324 -1 3 9 53.49 6.04 1.7130 2 0 8 53.99 1.22 1.6982 1 5 0 54.04 1.21 1.6969 -1 5 1 54.15 4.48 1.6939 2 4 0 54.19 2.09 1.6926 2 2 7 54.26 1.30 1.6905 -3 1 2 54.37 1.32 1.6875 1 5 1 54.82 4.92 1.6746 -3 1 3 55.05 2.58 1.6681 -2 4 3 55.20 19.73 1.6641 -2 0 10 55.61 6.59 1.6526 2 4 2 55.75 40.84 1.6489 1 3 9 56.17 5.19 1.6375 -2 4 4 56.18 5.93 1.6373 3 1 2 56.33 2.89 1.6332 1 5 3 56.66 11.82 1.6247 -1 5 4 56.95 2.26 1.6170 2 4 3 57.14 10.39 1.6119 -3 1 5 57.58 3.98 1.6008 2 2 8 57.66 5.13 1.5988 3 1 3 57.68 8.55 1.5982 -2 4 5 57.90 4.96 1.5926 1 5 4 58.88 3.34 1.5685 -3 1 6 58.98 1.25 1.5660 0 2 12 59.20 3.38 1.5607 -2 2 10 59.51 8.89 1.5534 3 1 4 59.56 5.80 1.5522 -2 4 6 59.84 3.00 1.5457 1 5 5 60.32 4.89 1.5343 -1 5 6 60.65 22.76 1.5270 -1 3 11 60.73 2.66 1.5250 2 4 5 60.85 2.11 1.5224 1 1 12 61.36 9.75 1.5109 2 0 10 61.90 23.73 1.4990 0 6 0 62.02 1.43 1.4963 0 4 10 62.06 50.01 1.4955 -3 3 1 62.09 2.16 1.4948 0 6 1 62.12 3.41 1.4943 1 5 6 62.67 2.63 1.4825 0 6 2 62.70 1.81 1.4817 -3 3 3 62.95 3.29 1.4766 3 3 1 62.97 1.27 1.4761 -2 2 11 63.14 4.36 1.4725 2 4 6 63.27 2.48 1.4698 -2 0 12 63.81 3.66 1.4587 0 2 13 63.90 5.74 1.4568 1 3 11 64.73 1.64 1.4402 1 5 7 65.13 5.67 1.4322 2 2 10 65.15 2.29 1.4319 0 0 14 65.74 1.83 1.4205 1 1 13 65.98 1.96 1.4158 0 4 11 66.15 1.68 1.4126 -3 1 9 66.87 2.16 1.3991 -1 1 14 67.21 1.27 1.3928 -2 4 9 68.43 2.00 1.3711 -3 3 7 68.62 1.59 1.3677 0 6 6 69.28 5.61 1.3563 2 2 11 69.34 28.49 1.3552 -1 3 13 70.12 13.26 1.3420 2 0 12 70.19 9.55 1.3409 0 4 12 70.81 1.61 1.3307 1 1 14 71.24 6.08 1.3237 -2 2 13 71.98 1.57 1.3118 -1 1 15 72.93 2.59 1.2970 -2 6 1 72.94 1.87 1.2970 1 3 13 73.03 5.76 1.2956 2 6 0 73.15 3.94 1.2937 -4 0 2 73.19 13.61 1.2931 -2 6 2 73.33 7.75 1.2910 -3 3 9 73.54 6.75 1.2879 4 0 0 73.64 6.08 1.2864 0 6 8 74.00 1.03 1.2811 0 2 15 74.24 8.35 1.2775 3 3 7 74.63 3.19 1.2717 0 4 13 74.76 7.43 1.2698 -2 6 4 75.33 4.32 1.2616 4 0 2 75.74 2.19 1.2558 -2 2 14 75.95 4.09 1.2529 0 0 16 76.44 5.30 1.2461 -1 7 1 76.60 3.05 1.2438 -4 0 6 76.62 1.64 1.2436 0 6 9 76.62 1.30 1.2436 -3 5 2 76.64 1.40 1.2433 -4 2 2 76.92 5.51 1.2394 2 6 4 77.02 1.28 1.2381 4 2 0 77.09 3.63 1.2372 -3 5 3 77.56 2.08 1.2309 -1 7 3 78.23 3.36 1.2220 3 5 2 78.30 3.81 1.2210 2 2 13 78.36 3.48 1.2202 1 7 3 78.68 5.23 1.2162 -4 2 5 79.05 1.53 1.2113 -3 5 5 79.50 3.11 1.2056 -3 3 11 79.70 2.46 1.2030 1 7 4 79.91 1.87 1.2005 0 6 10 80.04 1.15 1.1988 -4 2 6 80.18 1.18 1.1971 4 2 3 80.49 1.83 1.1932 -2 2 15 80.55 2.09 1.1925 -3 5 6 80.60 2.23 1.1919 3 3 9 81.10 4.65 1.1859 3 5 4 81.38 2.32 1.1824 1 7 5 81.44 2.91 1.1817 3 1 11 81.65 1.08 1.1793 -2 4 13 81.74 2.16 1.1781 -4 2 7 81.91 1.88 1.1761 4 2 4 82.84 1.15 1.1652 -1 1 17 82.93 1.12 1.1643 1 3 15 83.90 3.05 1.1532 -1 7 7 83.98 1.29 1.1523 4 2 5 85.76 1.11 1.1329 3 1 12 85.99 3.81 1.1305 -2 4 14 86.22 1.26 1.1281 2 6 8 87.24 1.29 1.1175 4 4 0 87.60 10.30 1.1138 -2 6 10 87.70 1.84 1.1128 -1 5 14 87.85 1.21 1.1113 -4 4 4 88.80 5.53 1.1018 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.