Norrishite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R060368 Tyrna P L, Guggenheim S American Mineralogist 76 (1991) 266-271 The crystal structure of norrishite, KLiMn2Si4O12: An oxygen-rich mica CELL PARAMETERS: 5.2800 8.9100 10.0500 90.000 98.200 90.000 SPACE GROUP: C2/m ATOM X Y Z OCCUPANCY ISO(B) K 0.00000 0.50000 0.00000 1.000 2.158 Li 0.00000 0.00000 0.50000 1.000 1.256 Mn 0.00000 0.34720 0.50000 1.000 0.751 Si 0.06290 0.17070 0.22700 1.000 0.813 O 0.04500 0.00000 0.16700 1.000 1.226 O 0.29700 0.24860 0.16150 1.000 1.224 O 0.10800 0.17870 0.38530 1.000 0.896 O 0.10900 0.50000 0.39600 1.000 1.126 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 8 +/- 9 MAX. ABS. INTENSITY / VOLUME**2: 16.41423696 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 8.89 100.00 9.9473 0 0 1 19.69 1.23 4.5078 1 1 0 19.93 22.52 4.4550 0 2 0 20.61 23.44 4.3101 -1 1 1 21.86 8.61 4.0659 0 2 1 24.97 56.55 3.5655 -1 1 2 26.87 14.09 3.3184 0 2 2 26.89 31.63 3.3158 0 0 3 28.31 60.00 3.1527 1 1 2 31.47 3.77 2.8432 -1 1 3 33.70 15.40 2.6599 0 2 3 34.32 26.68 2.6130 2 0 0 34.74 5.33 2.5821 1 3 0 35.29 26.61 2.5433 -1 3 1 36.12 4.64 2.4868 0 0 4 36.79 20.59 2.4431 2 0 1 38.12 29.51 2.3607 -1 3 2 39.16 4.71 2.3004 -1 1 4 39.91 6.51 2.2589 -2 2 1 40.48 5.71 2.2284 1 3 2 40.81 1.67 2.2114 -2 0 3 41.26 8.88 2.1883 2 0 2 41.55 11.86 2.1737 0 4 1 41.92 1.45 2.1550 -2 2 2 42.19 6.74 2.1421 2 2 1 42.85 16.97 2.1106 -1 3 3 43.68 1.40 2.0723 1 1 4 45.60 2.80 1.9895 0 0 5 45.81 1.02 1.9808 -2 2 3 46.05 10.34 1.9710 1 3 3 46.69 4.84 1.9453 -2 0 4 47.26 1.21 1.9233 2 0 3 47.64 1.75 1.9089 -1 1 5 49.03 1.88 1.8578 -1 3 4 51.24 2.41 1.7827 -2 2 4 52.51 1.04 1.7426 1 1 5 53.07 2.63 1.7257 -3 1 1 54.10 2.29 1.6952 2 4 0 54.24 1.72 1.6912 -3 1 2 54.44 8.95 1.6854 2 0 4 55.37 4.52 1.6592 0 4 4 55.42 1.45 1.6579 0 0 6 55.85 3.66 1.6460 2 4 1 56.36 16.30 1.6325 -1 3 5 56.76 1.06 1.6220 -1 1 6 56.83 2.32 1.6201 -1 5 2 58.60 2.53 1.5754 1 5 2 58.84 6.40 1.5693 -2 4 3 59.59 3.86 1.5514 3 1 2 60.42 1.21 1.5321 -1 5 3 60.74 8.86 1.5248 1 3 5 61.24 14.04 1.5135 -3 3 1 61.35 2.22 1.5110 -3 1 4 61.73 1.13 1.5026 3 3 0 61.85 3.00 1.5000 -2 0 6 61.97 1.76 1.4974 1 1 6 62.31 4.35 1.4900 -3 3 2 62.55 6.20 1.4850 0 6 0 62.60 2.27 1.4838 0 4 5 63.32 2.02 1.4687 0 6 1 63.95 1.43 1.4557 2 4 3 64.63 2.05 1.4420 -1 3 6 65.71 1.32 1.4210 0 0 7 66.39 1.63 1.4081 2 2 5 69.42 1.19 1.3538 0 2 7 69.50 7.38 1.3524 1 3 6 70.82 4.02 1.3306 -2 0 7 71.47 1.38 1.3199 -4 0 1 72.07 1.44 1.3104 -4 0 2 72.14 2.29 1.3094 3 3 3 73.27 1.20 1.2920 -2 6 1 73.33 6.60 1.2911 2 6 0 74.11 1.92 1.2794 -4 0 3 74.27 3.35 1.2770 -3 3 5 74.41 2.52 1.2750 0 6 4 74.41 3.08 1.2749 -2 2 7 74.60 1.68 1.2722 4 0 1 74.82 2.89 1.2690 2 6 1 75.21 1.36 1.2634 2 2 6 76.63 1.71 1.2434 0 0 8 77.41 1.97 1.2328 -2 6 3 77.65 1.11 1.2297 -4 2 3 78.13 1.26 1.2233 4 2 1 79.17 1.47 1.2098 -1 7 2 80.11 2.36 1.1980 0 4 7 80.69 2.27 1.1908 1 7 2 81.97 1.02 1.1754 2 6 3 87.56 2.91 1.1142 2 6 4 88.41 2.12 1.1057 -4 0 6 89.59 2.06 1.0941 4 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.