Meta-autunite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R060434 Makarov E S, Ivanov V I Doklady Akademii Nauk SSSR Earth Science Sections 132 (1960) 601-603 The crystal structure of meta-autunite, Ca(UO2)2(PO4)2*6H2O CELL PARAMETERS: 6.9400 6.9400 8.3600 90.000 90.000 90.000 ALTERNATE SETTING FOR SPACE GROUP: P4/nmm ATOM X Y Z OCCUPANCY ISO(B) Ca 0.25000 0.25000 0.61200 0.500 1.200 U 0.25000 0.25000 0.10600 1.000 1.200 P 0.75000 0.25000 0.00000 1.000 1.200 O 0.25000 0.25000 0.34300 1.000 1.200 O 0.25000 0.25000 0.89300 1.000 1.200 O 0.25000 0.58400 0.10600 1.000 1.200 Wa 0.48600 0.48600 0.39200 0.750 1.200 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 6 +/- 6 +/- 7 MAX. ABS. INTENSITY / VOLUME**2: 74.04191375 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.58 100.00 8.3600 0 0 1 16.60 74.78 5.3398 1 0 1 18.08 67.66 4.9073 1 1 0 20.99 21.19 4.2321 1 1 1 21.26 7.30 4.1800 0 0 2 24.87 64.96 3.5807 1 0 2 25.67 43.87 3.4700 2 0 0 27.84 72.67 3.2049 2 0 1 30.73 17.20 2.9096 2 1 1 33.57 3.44 2.6699 2 0 2 34.69 21.87 2.5860 1 0 3 36.04 34.22 2.4919 2 1 2 36.62 28.86 2.4537 2 2 0 37.10 3.83 2.4232 1 1 3 38.23 6.16 2.3544 2 2 1 40.46 9.09 2.2295 3 0 1 41.13 23.96 2.1946 3 1 0 41.56 2.21 2.1728 2 0 3 42.59 14.04 2.1227 3 1 1 42.73 2.51 2.1160 2 2 2 43.29 8.08 2.0900 0 0 4 43.65 12.19 2.0735 2 1 3 44.78 22.02 2.0240 3 0 2 45.32 3.68 2.0012 1 0 4 47.27 13.77 1.9229 1 1 4 48.53 9.30 1.8757 3 2 1 51.01 5.17 1.7903 2 0 4 51.33 8.11 1.7799 3 0 3 52.33 14.60 1.7484 3 2 2 52.76 11.08 1.7350 4 0 0 52.81 3.42 1.7336 2 1 4 53.12 3.84 1.7241 3 1 3 53.98 3.82 1.6988 4 0 1 54.91 1.22 1.6720 0 0 5 55.71 3.61 1.6501 4 1 1 56.24 5.86 1.6358 3 3 0 57.40 3.75 1.6053 3 3 1 57.51 1.14 1.6024 4 0 2 57.96 6.76 1.5910 2 2 4 58.26 9.72 1.5837 3 2 3 58.30 5.65 1.5827 1 1 5 59.17 7.36 1.5614 4 1 2 59.57 5.13 1.5518 4 2 0 59.62 2.19 1.5508 3 0 4 60.70 9.32 1.5258 4 2 1 61.24 14.90 1.5135 3 1 4 61.57 6.39 1.5063 2 0 5 64.70 4.27 1.4408 4 1 3 65.98 1.93 1.4158 3 2 4 66.25 1.14 1.4107 3 3 3 68.53 1.55 1.3693 5 0 1 68.53 2.22 1.3693 4 3 1 68.71 2.10 1.3661 1 0 6 69.00 3.11 1.3610 5 1 0 70.04 1.76 1.3434 5 1 1 70.22 1.70 1.3404 1 1 6 70.55 4.22 1.3350 4 0 4 70.85 8.03 1.3300 3 1 5 71.64 2.42 1.3173 5 0 2 71.64 6.58 1.3173 4 3 2 72.04 1.14 1.3109 4 1 4 73.52 4.98 1.2881 3 3 4 74.50 1.08 1.2737 5 2 1 74.67 2.58 1.2711 2 1 6 76.45 1.96 1.2459 4 2 4 76.71 2.08 1.2424 5 0 3 76.71 3.04 1.2424 4 3 3 77.51 4.19 1.2315 5 2 2 77.86 2.19 1.2268 4 4 0 79.63 1.00 1.2039 4 0 5 80.47 1.87 1.1936 3 0 6 80.74 2.34 1.1902 5 3 0 81.73 1.77 1.1783 5 3 1 81.84 1.63 1.1770 1 0 7 81.90 2.67 1.1763 3 1 6 82.46 1.59 1.1697 5 2 3 82.50 3.01 1.1693 3 3 5 83.60 1.53 1.1567 6 0 0 83.63 1.07 1.1562 4 3 4 84.57 2.34 1.1458 6 0 1 85.05 4.10 1.1405 5 1 4 85.34 3.08 1.1374 4 2 5 85.99 1.21 1.1305 6 1 1 86.16 1.96 1.1287 3 2 6 87.52 1.80 1.1146 2 1 7 88.92 3.25 1.1007 6 1 2 89.26 3.52 1.0973 6 2 0 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.