Pyrophyllite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050108 Wardle R, Brindley G W American Mineralogist 57 (1972) 732-750 The crystal structures of pyrophyllite, 1Tc, and of its dehydroxylate CELL PARAMETERS: 5.161400 8.957600 9.351100 91.03000 100.3700 89.75000 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.63 89.52 9.1983 0 0 1 19.31 40.58 4.5992 0 0 2 20.06 12.24 4.4277 1 1 0 20.16 100.00 4.4071 -1 1 0 20.78 67.89 4.2769 -1 -1 1 21.01 22.29 4.2295 -1 1 1 21.94 87.59 4.0522 0 -2 1 22.22 2.32 4.0030 0 2 1 23.67 8.93 3.7606 1 -1 1 23.71 3.19 3.7533 1 1 1 25.51 18.16 3.4928 -1 -1 2 25.82 11.42 3.4513 -1 1 2 28.02 37.05 3.1844 0 2 2 29.13 86.36 3.0661 0 0 3 30.26 27.53 2.9540 1 1 2 32.65 5.73 2.7430 -1 -1 3 32.99 8.49 2.7152 -1 1 3 34.77 8.31 2.5803 1 3 0 34.94 7.66 2.5681 -1 3 0 34.91 11.11 2.5699 -2 0 1 35.11 23.66 2.5557 -1 -3 1 35.21 3.49 2.5487 0 -2 3 35.35 22.77 2.5387 2 0 0 35.55 25.56 2.5254 -1 3 1 37.07 26.59 2.4246 1 -3 1 37.21 26.23 2.4161 -2 0 2 37.17 32.82 2.4188 1 3 1 38.19 8.67 2.3565 1 -1 3 38.14 2.27 2.3593 -1 -3 2 38.46 3.78 2.3406 2 0 1 38.79 1.67 2.3212 -1 3 2 39.17 2.42 2.2996 0 0 4 41.11 1.04 2.1954 -1 -1 4 41.60 9.93 2.1708 1 -3 2 41.47 2.89 2.1772 -1 1 4 41.86 8.50 2.1575 -2 0 3 41.91 11.67 2.1552 1 3 2 42.75 2.34 2.1148 -2 2 2 43.37 15.26 2.0859 -1 -3 3 43.64 1.42 2.0736 2 -2 1 43.60 2.57 2.0754 2 2 1 43.74 13.98 2.0692 2 0 2 43.97 3.45 2.0588 0 -2 4 44.18 13.73 2.0496 -1 3 3 44.56 2.07 2.0330 0 2 4 45.30 4.93 2.0015 0 4 2 46.42 1.89 1.9557 -2 -2 3 47.95 4.49 1.8967 1 -3 3 48.32 4.72 1.8831 -2 0 4 48.44 2.34 1.8788 1 3 3 48.49 1.46 1.8766 2 2 2 49.53 11.12 1.8397 0 0 5 50.04 5.35 1.8221 0 -4 3 50.26 1.53 1.8147 -1 -3 4 50.44 3.10 1.8087 -1 -1 5 52.37 2.99 1.7464 -2 -2 4 53.05 1.55 1.7257 -2 2 4 53.54 1.23 1.7111 0 -2 5 54.02 3.85 1.6968 -2 -4 1 54.17 1.36 1.6925 0 2 5 54.17 2.33 1.6926 1 5 0 54.35 2.00 1.6874 -1 -5 1 54.60 1.22 1.6803 -2 4 1 54.78 4.31 1.6751 -2 4 0 54.81 3.79 1.6742 2 -2 3 55.15 2.07 1.6647 3 1 0 55.27 2.88 1.6614 -3 1 0 55.38 5.71 1.6584 -3 1 2 55.69 8.39 1.6499 1 -3 4 55.84 2.28 1.6458 1 -5 1 56.14 8.95 1.6378 -2 0 5 56.31 9.01 1.6331 1 3 4 56.48 2.39 1.6287 -1 -5 2 56.91 1.63 1.6174 2 -4 1 57.29 1.44 1.6076 -1 5 2 57.31 2.03 1.6069 1 1 5 58.10 2.18 1.5870 3 -1 1 58.02 3.53 1.5890 -3 -1 3 59.17 2.30 1.5607 1 -5 2 59.97 3.73 1.5419 -2 4 3 60.35 1.58 1.5331 0 0 6 60.50 3.35 1.5297 -2 2 5 61.02 1.61 1.5180 2 4 2 61.49 1.29 1.5074 -1 5 3 61.98 14.92 1.4967 -3 -3 1 62.14 15.64 1.4932 0 6 0 62.48 14.54 1.4858 -3 3 1 62.58 1.43 1.4836 2 -2 4 62.68 1.08 1.4816 3 1 2 62.87 1.31 1.4775 0 -6 1 62.90 3.85 1.4770 2 2 4 62.95 2.53 1.4759 3 3 0 63.28 2.61 1.4690 -3 3 0 63.22 1.39 1.4703 0 6 1 64.04 2.20 1.4534 -2 -4 4 64.56 3.15 1.4428 1 -3 5 64.87 1.65 1.4368 1 5 3 65.08 2.17 1.4326 -2 0 6 65.30 2.69 1.4282 1 3 5 65.99 2.17 1.4149 -1 -5 4 66.21 4.75 1.4109 0 4 5 67.67 17.61 1.3838 -1 -3 6 68.13 13.57 1.3756 2 0 5 68.36 1.23 1.3715 -2 -2 6 68.80 1.44 1.3639 3 -1 3 68.77 13.97 1.3644 -1 3 6 69.57 2.67 1.3507 0 -6 3 69.72 2.75 1.3481 -3 -3 4 70.07 1.43 1.3422 3 -3 2 70.55 1.34 1.3343 0 6 3 70.69 2.17 1.3320 -3 3 4 71.80 2.74 1.3140 0 0 7 73.35 3.56 1.2901 2 6 0 73.65 1.07 1.2856 -2 6 1 73.75 3.05 1.2840 -2 6 0 73.69 2.89 1.2850 -4 0 2 74.17 5.39 1.2778 -2 -6 2 74.41 2.56 1.2743 0 -4 6 74.49 1.32 1.2731 1 -3 6 74.52 1.40 1.2726 -1 5 5 74.75 7.42 1.2694 4 0 0 75.21 6.32 1.2627 -2 6 2 75.08 1.53 1.2646 -2 0 7 75.35 1.99 1.2607 1 3 6 75.86 1.08 1.2535 3 -3 3 75.66 1.41 1.2563 -4 0 3 76.87 3.13 1.2395 -1 7 0 76.70 1.80 1.2418 -4 -2 1 76.74 3.04 1.2413 -1 -7 1 76.95 1.05 1.2384 -4 -2 2 77.07 2.69 1.2367 -3 -5 2 77.30 1.07 1.2337 3 5 0 77.80 1.21 1.2271 -3 5 0 78.13 1.23 1.2227 -2 -2 7 78.37 1.05 1.2195 -4 2 0 78.48 1.67 1.2180 2 0 6 78.92 1.81 1.2123 2 -6 2 78.85 1.44 1.2133 -4 -2 3 79.15 2.08 1.2094 2 6 2 80.11 2.03 1.1973 -2 4 6 80.70 1.32 1.1900 -3 5 3 81.36 1.40 1.1821 1 7 2 82.53 1.32 1.1683 0 -6 5 83.12 1.41 1.1614 3 -3 4 82.87 1.28 1.1643 -3 -3 6 83.03 1.06 1.1625 -4 2 4 84.01 1.19 1.1514 3 -5 2 84.09 1.51 1.1504 -3 3 6 85.27 1.32 1.1376 1 -7 3 85.26 1.30 1.1377 3 -1 5 87.61 3.58 1.1131 -2 -6 5 88.51 3.28 1.1041 4 0 3 89.54 3.29 1.0940 -2 6 5 89.54 3.29 1.0940 -2 6 5 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.