Steacyite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R130053 Prichard P, Perrault G Acta Crystallographica B28 (1972) 1994-1999 Structure cristalline de l'ekanite de St-Hilaire, P.Q. Locality: Mont St-Hilaire, Quebec, Canada _database_code_amcsd 0018511 CELL PARAMETERS: 7.5959 7.5959 14.8120 90.000 90.000 90.000 SPACE GROUP: P4/mcc ATOM X Y Z OCCUPANCY ISO(B) K 0.00000 0.00000 0.00000 0.600 2.098 Na 0.00000 0.50000 0.25000 0.450 1.567 Ca 0.00000 0.50000 0.25000 0.370 1.567 Mn 0.00000 0.50000 0.25000 0.100 1.567 Mg 0.00000 0.50000 0.25000 0.020 1.567 Th 0.00000 0.00000 0.25000 0.880 1.105 Ce 0.00000 0.00000 0.25000 0.030 1.105 Pb 0.00000 0.00000 0.25000 0.010 1.105 Si 0.26050 0.33600 0.10730 1.000 1.090 O 0.23050 0.33600 0.00000 1.000 2.359 O 0.45360 0.25710 0.13270 1.000 1.865 O 0.10810 0.24710 0.16320 1.000 1.727 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 6 +/- 6 +/- 13 MAX. ABS. INTENSITY / VOLUME**2: 29.45472147 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 11.65 31.06 7.5959 1 0 0 11.95 39.63 7.4060 0 0 2 16.50 28.92 5.3711 1 1 0 16.72 100.00 5.3027 1 0 2 20.43 14.89 4.3480 1 1 2 24.03 1.36 3.7030 0 0 4 26.23 66.16 3.3970 2 1 0 26.37 60.72 3.3795 2 0 2 26.78 61.01 3.3285 1 0 4 26.93 17.83 3.3110 2 1 1 28.92 16.86 3.0877 2 1 2 29.29 9.80 3.0487 1 1 4 31.98 1.21 2.7986 2 1 3 33.36 14.67 2.6856 2 2 0 33.81 64.23 2.6513 2 0 4 35.45 14.79 2.5320 3 0 0 35.56 8.14 2.5247 2 2 2 35.87 13.45 2.5032 2 1 4 36.39 1.68 2.4687 0 0 6 37.44 5.05 2.4020 3 1 0 37.54 3.06 2.3958 3 0 2 38.34 3.28 2.3478 1 0 6 39.44 5.07 2.2849 3 1 2 40.20 3.00 2.2431 1 1 6 41.54 20.63 2.1740 2 2 4 41.82 5.62 2.1600 3 1 3 42.93 3.82 2.1067 3 2 0 43.29 4.66 2.0901 3 0 4 43.38 3.70 2.0857 3 2 1 43.73 8.54 2.0698 2 0 6 44.72 17.96 2.0263 3 2 2 44.98 11.10 2.0152 3 1 4 45.42 15.67 1.9970 2 1 6 47.90 10.64 1.8990 4 0 0 48.81 1.37 1.8658 3 1 5 49.21 8.06 1.8515 0 0 8 49.47 2.38 1.8423 4 1 0 49.56 5.85 1.8395 4 0 2 49.80 14.01 1.8311 3 2 4 49.88 2.42 1.8282 4 1 1 50.20 11.33 1.8175 2 2 6 50.75 1.16 1.7988 1 0 8 51.01 1.62 1.7904 3 3 0 51.09 9.52 1.7878 4 1 2 51.72 7.48 1.7676 3 0 6 52.26 2.59 1.7504 1 1 8 52.59 1.54 1.7402 3 3 2 53.21 2.00 1.7216 3 1 6 53.99 11.62 1.6985 4 2 0 54.29 2.52 1.6897 4 0 4 55.19 1.75 1.6643 2 0 8 55.51 10.46 1.6555 4 2 2 55.73 11.66 1.6494 4 1 4 56.62 14.94 1.6257 2 1 8 57.51 1.23 1.6025 3 2 6 59.91 5.67 1.5438 4 2 4 60.76 4.91 1.5243 2 2 8 60.99 4.71 1.5192 4 3 0 61.34 1.15 1.5113 4 3 1 61.62 3.00 1.5052 4 0 6 62.10 4.78 1.4945 3 0 8 62.33 1.88 1.4897 5 1 0 62.40 1.67 1.4882 4 3 2 62.40 1.61 1.4882 5 0 2 62.68 3.31 1.4822 5 1 1 62.95 1.98 1.4765 4 1 6 63.43 2.39 1.4664 3 1 8 63.72 1.68 1.4604 5 1 2 64.05 2.98 1.4538 1 0 10 64.27 1.34 1.4493 3 3 6 66.26 4.48 1.4105 5 2 0 66.53 3.13 1.4055 4 3 4 66.53 4.61 1.4055 5 0 4 66.86 2.85 1.3993 4 2 6 67.33 1.88 1.3907 3 2 8 67.61 2.75 1.3856 5 2 2 67.81 1.31 1.3820 5 1 4 67.93 5.65 1.3800 2 0 10 69.19 1.02 1.3577 2 1 10 69.20 1.87 1.3577 3 1 9 70.80 2.17 1.3309 5 1 5 71.12 4.29 1.3257 4 0 8 71.39 2.04 1.3212 4 4 2 71.59 1.38 1.3181 5 2 4 72.36 1.08 1.3059 4 1 8 72.89 1.33 1.2977 5 3 1 73.15 3.63 1.2938 4 3 6 74.38 1.26 1.2755 5 1 6 75.28 3.79 1.2623 4 4 4 75.39 1.09 1.2608 3 1 10 76.04 4.22 1.2516 4 2 8 76.25 2.06 1.2488 6 1 0 76.31 1.02 1.2479 6 0 2 77.52 1.23 1.2314 6 1 2 77.71 2.34 1.2289 5 3 4 78.02 1.66 1.2247 5 2 6 78.51 2.05 1.2184 1 0 12 79.02 5.16 1.2117 3 2 10 80.11 2.73 1.1979 6 0 4 81.12 3.09 1.1855 6 2 2 81.31 1.30 1.1833 6 1 4 81.62 1.28 1.1796 4 4 6 82.05 3.37 1.1744 4 3 8 82.10 1.41 1.1739 2 0 12 82.32 1.44 1.1713 5 4 2 83.24 1.39 1.1606 5 1 8 83.29 1.01 1.1601 2 1 12 83.80 2.36 1.1544 4 1 10 84.88 4.13 1.1424 6 2 4 86.06 2.53 1.1297 5 4 4 86.37 1.74 1.1265 6 0 6 86.80 2.21 1.1220 5 2 8 86.85 1.59 1.1215 2 2 12 87.06 1.96 1.1193 6 3 2 87.35 2.43 1.1163 4 2 10 87.55 1.82 1.1143 6 1 6 88.54 2.05 1.1044 5 1 9 89.21 1.13 1.0979 3 1 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.