Normandite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R120066 Perchiazzi N, McDonald A M, Gault R A, Johnsen O, Merlino S The Canadian Mineralogist 38 (2000) 641-648 The crystal structure of normandite and its crystal-chemical relationships with lavenite Locality: Amdrup Fjord _database_code_amcsd 0005649 CELL PARAMETERS: 10.7790 9.7850 7.0440 90.000 108.120 90.000 SPACE GROUP: P2_1/a ATOM X Y Z OCCUPANCY ISO(B) Ti 0.28825 0.10359 0.02313 0.612 0.940 Zr 0.28825 0.10359 0.02313 0.388 0.940 Mn 0.43743 0.36943 0.85858 1.000 1.098 Ca 0.30224 0.10885 0.52550 0.660 1.248 Na 0.30224 0.10885 0.52550 0.340 1.248 Na 0.42560 0.37860 0.33980 0.830 1.627 Ca 0.42560 0.37860 0.33980 0.170 1.627 Si 0.62168 0.16485 0.21360 1.000 0.845 Si 0.62051 0.16633 0.67050 1.000 0.837 O 0.63970 0.16280 0.45080 1.000 1.942 O 0.74110 0.26270 0.20500 1.000 1.232 O 0.74800 0.25120 0.80200 1.000 1.311 O 0.65370 0.01110 0.16330 1.000 1.398 O 0.63000 0.00880 0.74000 1.000 1.469 O 0.47840 0.22090 0.09590 1.000 1.145 O 0.48520 0.23920 0.65380 1.000 1.358 O 0.62350 0.47550 0.95770 1.000 1.413 F 0.38810 0.50500 0.59980 1.000 1.784 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 9 +/- 8 +/- 6 MAX. ABS. INTENSITY / VOLUME**2: 19.49935117 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 13.23 19.34 6.6947 0 0 1 16.04 1.48 5.5252 0 1 1 16.15 4.71 5.4869 -1 1 1 17.31 5.62 5.1222 2 0 0 20.11 1.97 4.4149 1 2 0 22.59 19.92 3.9360 -1 2 1 24.96 3.79 3.5677 2 0 1 25.17 2.14 3.5379 2 2 0 26.59 8.95 3.3518 2 1 1 26.94 2.69 3.3094 -3 1 1 27.67 30.38 3.2241 3 1 0 28.44 1.59 3.1384 -2 1 2 28.72 1.53 3.1079 1 3 0 30.55 2.16 2.9264 -1 3 1 31.30 100.00 2.8581 -1 2 2 31.33 1.14 2.8555 -3 2 1 31.96 62.98 2.8002 3 2 0 32.41 6.46 2.7626 0 2 2 32.55 7.53 2.7512 2 3 0 32.64 6.85 2.7435 -2 2 2 32.90 1.74 2.7226 1 3 1 33.34 4.48 2.6871 -4 0 1 36.34 9.40 2.4720 2 0 2 36.74 4.51 2.4462 0 4 0 36.97 10.29 2.4315 -4 0 2 37.53 4.76 2.3967 2 1 2 37.81 8.01 2.3794 1 4 0 37.86 1.54 2.3765 3 2 1 38.14 2.51 2.3597 -4 1 2 38.16 6.97 2.3586 3 3 0 38.54 2.96 2.3360 0 3 2 38.74 3.58 2.3244 -2 3 2 39.72 4.99 2.2690 4 2 0 41.47 5.39 2.1774 1 3 2 41.85 5.83 2.1587 -3 3 2 42.89 2.55 2.1086 -1 2 3 45.00 1.02 2.0143 4 3 0 45.22 6.38 2.0054 5 1 0 45.95 3.50 1.9750 0 4 2 46.07 7.61 1.9701 2 3 2 46.12 1.15 1.9680 -2 4 2 46.59 4.67 1.9494 -4 3 2 47.29 1.77 1.9222 1 5 0 48.52 2.10 1.8764 1 4 2 48.85 2.26 1.8644 -3 4 2 50.45 1.48 1.8089 -4 4 1 51.39 1.07 1.7780 5 1 1 51.93 18.48 1.7608 -2 0 4 52.12 2.07 1.7549 4 1 2 52.64 12.58 1.7388 2 4 2 52.71 1.40 1.7367 1 3 3 52.91 2.69 1.7306 -6 1 2 53.01 1.31 1.7274 2 2 3 53.11 14.93 1.7245 -4 4 2 53.83 1.09 1.7031 -5 2 3 54.01 1.73 1.6979 3 5 0 54.40 2.58 1.6864 -2 4 3 54.56 9.24 1.6820 6 1 0 56.59 6.16 1.6265 1 5 2 56.89 6.66 1.6186 -3 5 2 59.02 1.94 1.5651 4 3 2 59.42 3.40 1.5556 1 1 4 59.48 1.13 1.5540 2 6 0 59.75 2.29 1.5478 -6 3 2 60.13 1.03 1.5387 -6 2 3 60.32 1.68 1.5344 2 5 2 60.62 7.40 1.5275 5 1 2 61.28 3.13 1.5127 6 3 0 61.48 5.83 1.5082 -7 1 2 61.86 4.93 1.4998 1 2 4 62.71 7.04 1.4815 -5 2 4 62.79 2.78 1.4798 -1 6 2 62.92 1.01 1.4771 -4 3 4 63.18 3.27 1.4716 3 6 0 63.45 1.26 1.4661 0 6 2 63.59 1.16 1.4632 -2 6 2 63.88 1.06 1.4572 -7 2 2 65.29 3.26 1.4291 -2 4 4 65.83 1.56 1.4188 1 3 4 65.87 1.24 1.4180 -1 4 4 66.02 2.23 1.4152 5 5 0 66.14 1.05 1.4128 -3 4 4 66.97 1.44 1.3973 5 3 2 67.78 1.01 1.3825 -7 3 2 68.17 4.81 1.3756 4 6 0 69.73 3.88 1.3485 2 7 0 71.93 1.29 1.3126 -7 1 4 77.90 2.39 1.2263 4 1 4 78.14 1.24 1.2231 0 8 0 78.80 1.64 1.2145 1 8 0 79.43 1.75 1.2065 -8 1 4 83.67 1.19 1.1558 4 3 4 84.97 2.64 1.1414 -3 2 6 85.61 1.38 1.1345 8 4 0 86.49 1.22 1.1252 -5 6 4 88.96 1.43 1.1003 4 7 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.