Richetite Diffraction data computed using the structure from the papaer listed below, along with the cell parameters refined from single crystal data of R090053. Burns P C The Canadian Mineralogist 36 (1998) 187-199 The structure of richetite, a rare lead uranyl oxide hydrate CELL PARAMETERS: 21.0010 12.1580 16.4520 103.855 115.287 90.150 SPACE GROUP: P1 ATOM X Y Z OCCUPANCY ISO(B) U 0.10290 0.93830 0.25740 1.000 1.500 U 0.27460 0.43740 0.28240 1.000 1.563 U 0.44490 0.56880 0.28160 1.000 0.766 U -0.05990 0.43830 0.26530 1.000 1.248 U -0.23350 0.57810 0.26660 1.000 1.682 U 0.10370 0.55180 0.25420 1.000 1.713 U 0.25420 0.75540 0.27270 1.000 0.711 U 0.59540 0.76290 0.28480 1.000 1.398 U 0.43840 -0.05890 0.26650 1.000 1.279 U 0.40540 0.24430 0.24650 1.000 1.358 U -0.09310 0.74560 0.24930 1.000 1.153 U -0.23160 0.93060 0.27280 1.000 1.398 U 0.09760 0.25790 0.28410 1.000 1.390 U 0.60380 0.43890 0.25600 1.000 1.453 U 0.26410 0.07720 0.26610 1.000 1.642 U -0.24820 0.25200 0.26630 1.000 0.576 U 0.59980 0.05020 0.24570 1.000 1.319 U -0.05900 0.06780 0.27690 1.000 0.782 U 0.44070 0.24690 0.75560 1.000 2.629 U 0.75490 0.92970 0.75030 1.000 1.721 U 0.92670 0.07460 0.75650 1.000 1.169 U 0.29030 0.75690 0.78620 1.000 1.461 U 0.09500 0.94940 0.78330 1.000 1.350 U 0.42670 -0.08610 0.75550 1.000 1.042 U 0.59950 0.74870 0.75000 1.000 0.995 U 0.10060 0.24300 0.74940 1.000 1.034 U 0.78980 0.25700 0.78520 1.000 1.516 U 0.26310 0.06600 0.76730 1.000 1.350 U 0.94300 0.75010 0.76430 1.000 2.724 U 0.09400 0.56570 0.77650 1.000 1.950 U 0.59170 0.44720 0.77620 1.000 0.963 U 0.59550 0.06580 0.77430 1.000 1.777 U 0.42130 0.56900 0.74600 1.000 0.940 U 0.25070 0.42870 0.74500 1.000 1.705 U 0.92420 0.41320 0.75370 1.000 0.963 U 0.76130 0.56950 0.76700 1.000 1.184 Pb -0.03030 0.66970 0.51880 0.940 2.692 Pb 0.07440 0.96960 0.52180 0.710 2.084 Pb 0.46360 0.52370 0.54530 0.620 1.729 Pb 0.23370 0.47800 0.49020 0.620 2.148 Pb 0.61720 0.95690 0.00370 0.900 3.040 Pb 0.71190 0.68720 0.01590 0.810 3.237 Pb 0.08000 0.04430 0.02990 0.630 1.295 Pb 0.72660 0.33590 0.51590 0.760 2.132 Pb -0.01570 0.31520 0.01400 0.680 2.361 Pb 0.62240 0.03120 0.51170 0.920 3.458 Pb 0.11910 0.46400 0.00900 0.340 3.000 Pb 0.21280 0.18700 0.01900 0.310 3.656 Pb 0.30660 0.69320 0.54080 0.500 3.261 Fe 0.34900 0.50700 0.01600 0.470 1.855 Mg 0.34900 0.50700 0.01600 0.530 1.855 Mg -0.15100 0.01300 0.01500 0.300 1.855 O 0.14700 0.94000 0.37600 1.000 1.698 O 0.06700 0.92600 0.13100 1.000 1.698 O 0.03600 0.07400 0.25000 1.000 1.698 O 0.20300 0.92000 0.24300 1.000 1.698 O 0.17800 0.13200 0.29600 1.000 1.698 O 0.22500 0.37900 0.15800 1.000 1.698 O 0.32500 0.46700 0.41100 1.000 1.698 O 0.21800 0.58300 0.28600 1.000 1.698 O 0.17700 0.39300 0.31000 1.000 1.698 O 0.31800 0.26700 0.30800 1.000 1.698 O 0.36900 0.42000 0.26000 1.000 1.698 O 0.49500 0.56500 0.40200 1.000 1.698 O 0.39800 0.56800 0.16100 1.000 1.698 O 0.54400 0.57800 0.26300 1.000 1.698 O -0.11100 0.35300 0.14900 1.000 1.698 O -0.00600 0.52000 0.38600 1.000 1.698 O -0.13600 0.57400 0.25100 1.000 1.698 O 0.04700 0.39300 0.25000 1.000 1.698 O -0.17600 0.62500 0.39600 1.000 1.698 O -0.18600 0.76000 0.28600 1.000 1.698 O 0.70700 0.41500 0.23700 1.000 1.698 O 0.67500 0.62800 0.28600 1.000 1.698 O -0.29200 0.59300 0.14400 1.000 1.698 O 0.13000 0.62400 0.36800 1.000 1.698 O 0.07900 0.49200 0.13100 1.000 1.698 O 0.23200 0.70400 0.15400 1.000 1.698 O 0.26300 0.79800 0.38900 1.000 1.698 O 0.63500 0.80200 0.40600 1.000 1.698 O 0.56500 0.71600 0.16200 1.000 1.698 O 0.54900 -0.08000 0.26600 1.000 1.698 O 0.66800 0.89700 0.28400 1.000 1.698 O 0.48800 0.02700 0.39000 1.000 1.698 O 0.38700 -0.14000 0.15100 1.000 1.698 O 0.36300 0.07100 0.23700 1.000 1.698 O 0.35500 0.22000 0.12000 1.000 1.698 O 0.46700 0.28700 0.36900 1.000 1.698 O -0.14500 0.70700 0.12100 1.000 1.698 O -0.04000 0.78500 0.37300 1.000 1.698 O -0.12900 0.91400 0.25200 1.000 1.698 O -0.27400 0.87800 0.14600 1.000 1.698 O -0.18100 0.97400 0.39900 1.000 1.698 O 0.70600 0.08300 0.24800 1.000 1.698 O 0.06900 0.21600 0.15900 1.000 1.698 O 0.13300 0.29400 0.41000 1.000 1.698 O 0.64800 0.41200 0.36500 1.000 1.698 O 0.56500 0.43400 0.13100 1.000 1.698 O 0.21100 0.08300 0.14600 1.000 1.698 O 0.32100 0.10700 0.38900 1.000 1.698 O -0.27500 0.20700 0.14200 1.000 1.698 O -0.23700 0.29800 0.38500 1.000 1.698 O 0.63500 0.12900 0.36300 1.000 1.698 O 0.56300 -0.01300 0.12200 1.000 1.698 O -0.10900 0.06900 0.15500 1.000 1.698 O -0.01300 0.06500 0.39800 1.000 1.698 O 0.41800 0.19100 0.63200 1.000 1.698 O 0.45500 0.28600 0.87800 1.000 1.698 O 0.48300 0.41700 0.76600 1.000 1.698 O 0.47600 0.07300 0.76100 1.000 1.698 O 0.69600 0.91900 0.62800 1.000 1.698 O 0.81000 0.93400 0.87000 1.000 1.698 O 0.64900 0.90700 0.74400 1.000 1.698 O 0.81900 0.06700 0.74200 1.000 1.698 O 0.89100 0.02200 0.63000 1.000 1.698 O 0.97500 0.13800 0.88800 1.000 1.698 O 0.89700 0.24800 0.74300 1.000 1.698 O 0.98800 0.92800 0.78100 1.000 1.698 O 0.03900 0.12000 0.76400 1.000 1.698 O 0.23400 0.73500 0.66300 1.000 1.698 O 0.35500 0.79300 0.91000 1.000 1.698 O 0.31800 0.57200 0.75400 1.000 1.698 O 0.34100 0.93900 0.79200 1.000 1.698 O 0.39300 0.74200 0.74400 1.000 1.698 O 0.06900 0.88400 0.66100 1.000 1.698 O 0.12900 0.02700 0.90700 1.000 1.698 O 0.17100 0.09200 0.77700 1.000 1.698 O 0.37100 -0.10200 0.63100 1.000 1.698 O 0.48600 -0.05800 0.88000 1.000 1.698 O 0.52400 -0.12500 0.71900 1.000 1.698 O 0.57100 0.69000 0.62500 1.000 1.698 O 0.62500 0.79700 0.87500 1.000 1.698 O 0.53000 0.61000 0.74600 1.000 1.698 O 0.66600 0.59000 0.77700 1.000 1.698 O 0.14000 0.30500 0.87300 1.000 1.698 O 0.06600 0.17000 0.62500 1.000 1.698 O 0.14300 0.40500 0.73700 1.000 1.698 O 0.01100 0.35600 0.71500 1.000 1.698 O 0.72800 0.22200 0.66200 1.000 1.698 O 0.85400 0.29400 0.91200 1.000 1.698 O 0.84100 0.43800 0.80300 1.000 1.698 O 0.30800 0.14300 0.89000 1.000 1.698 O 0.21400 -0.00800 0.64600 1.000 1.698 O 0.92300 0.70800 0.64500 1.000 1.698 O 0.95100 0.78300 0.88100 1.000 1.698 O 0.98200 0.57100 0.76600 1.000 1.698 O 0.06900 0.57200 0.66200 1.000 1.698 O 0.12300 0.55900 0.89400 1.000 1.698 O 0.62500 0.51600 0.90100 1.000 1.698 O 0.56800 0.37800 0.65000 1.000 1.698 O 0.62400 0.06200 0.89300 1.000 1.698 O 0.57700 0.07900 0.65700 1.000 1.698 O 0.37700 0.50900 0.61800 1.000 1.698 O 0.46700 0.61300 0.87500 1.000 1.698 O 0.30200 0.44400 0.86800 1.000 1.698 O 0.20000 0.40400 0.61900 1.000 1.698 O 0.97900 0.45100 0.88200 1.000 1.698 O 0.86300 0.39100 0.62400 1.000 1.698 O 0.80600 0.63600 0.88900 1.000 1.698 O 0.71900 0.48600 0.64500 1.000 1.698 OH -0.01400 0.86500 0.23200 1.000 1.698 OH 0.11800 0.73400 0.21300 1.000 1.698 OH 0.36400 0.64200 0.32700 1.000 1.698 OH 0.47800 0.75800 0.30600 1.000 1.698 OH 0.48400 0.36900 0.22000 1.000 1.698 OH -0.14300 0.39000 0.31400 1.000 1.698 OH -0.02300 0.26300 0.31300 1.000 1.698 OH -0.02200 0.59400 0.21500 1.000 1.698 OH 0.35900 0.90100 0.31300 1.000 1.698 OH 0.47700 0.09700 0.21100 1.000 1.698 OH -0.14300 0.14500 0.32900 1.000 1.698 OH 0.61500 0.23400 0.19800 1.000 1.698 OH 0.35000 0.12100 0.71800 1.000 1.698 OH 0.35000 0.35500 0.70800 1.000 1.698 OH 0.57800 0.26100 0.80300 1.000 1.698 OH 0.85400 0.86800 0.72200 1.000 1.698 OH 0.71600 0.72200 0.70800 1.000 1.698 OH 0.71400 0.13100 0.81100 1.000 1.698 OH 0.22000 0.90500 0.83400 1.000 1.698 OH 0.21200 0.63100 0.80300 1.000 1.698 OH 0.08000 0.77100 0.81200 1.000 1.698 OH 0.21400 0.22100 0.70700 1.000 1.698 OH 0.71000 0.39800 0.81800 1.000 1.698 OH 0.85300 0.62100 0.73000 1.000 1.698 Wa 0.38900 0.30200 0.47700 1.000 1.587 Wa 0.58300 0.76400 0.01600 1.000 1.587 Wa 0.16000 0.12000 0.51500 1.000 1.587 Wa 0.10600 0.77600 0.52400 1.000 1.587 Wa 0.76400 0.92500 0.01900 1.000 1.587 Wa 0.12400 0.53100 0.52200 1.000 1.587 Wa 0.28700 0.32300 0.52200 1.000 1.587 Wa 0.41300 0.70900 0.54400 1.000 1.587 Wa 0.73200 0.98200 0.49500 1.000 1.587 Wa 0.78200 0.52800 0.51900 1.000 1.587 Wa 0.15200 0.84000 0.01400 1.000 1.587 Wa 0.10000 0.26900 0.01300 1.000 1.587 Wa 0.57700 0.47400 0.52400 1.000 1.587 Wa 0.43500 0.57100 0.01100 1.000 1.587 Wa -0.08900 0.83700 0.03500 1.000 1.587 Wa 0.27500 0.41000 0.02600 1.000 1.587 Wa 0.38600 0.33200 0.01000 1.000 1.587 Wa 0.29100 0.63500 0.00300 1.000 1.587 Wa 0.60000 0.28500 0.52300 1.000 1.587 Wa 0.47300 0.17100 0.51900 1.000 1.587 Wa -0.08100 0.43700 0.49500 1.000 1.587 Wa 0.41800 0.02500 0.01200 1.000 1.587 Wa 0.27800 0.04700 0.52700 1.000 1.587 Wa -0.08100 0.52500 0.02500 1.000 1.587 Wa 0.76800 0.46900 0.01400 1.000 1.587 Wa 0.02900 0.32500 0.50800 1.000 1.587 Wa 0.65400 0.64700 0.51800 1.000 1.587 Wa 0.41100 -0.03800 0.51300 1.000 1.587 Wa 0.27300 0.94800 0.00700 1.000 1.587 Wa 0.95800 0.03900 0.53900 1.000 1.587 Wa 0.54600 0.15700 0.03600 1.000 1.587 Wa 0.88900 0.80000 0.48200 1.000 1.587 Wa -0.09100 0.18400 0.51400 1.000 1.587 Wa 0.04500 0.66300 0.03600 1.000 1.587 Wa 0.48100 0.80700 0.00000 1.000 1.587 Wa -0.35100 0.34600 0.02000 1.000 1.587 Wa 0.53100 0.84000 0.49700 1.000 1.587 Wa 0.22600 0.83800 0.51700 1.000 1.587 Wa 0.93400 0.10200 0.02100 1.000 1.587 Wa -0.42100 0.53400 0.02400 1.000 1.587 Wa -0.18500 0.19000 0.03200 1.000 1.587 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 17 +/- 10 +/- 13 MAX. ABS. INTENSITY / VOLUME**2: 154.2812137 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 6.16 1.34 14.3393 0 0 1 8.39 1.19 10.5336 -1 1 0 8.66 1.11 10.2071 -2 0 1 8.67 4.10 10.1993 -1 -1 1 9.38 1.02 9.4263 2 0 0 11.32 1.26 7.8155 -2 1 0 12.35 100.00 7.1697 0 0 2 14.72 3.32 6.0184 -3 1 1 14.76 1.88 6.0013 -3 -1 1 15.12 3.29 5.8598 0 2 0 16.74 1.23 5.2949 -1 -1 3 16.99 1.02 5.2189 -2 -2 1 17.98 1.01 4.9327 2 -2 1 18.76 1.18 4.7296 2 2 0 20.35 1.73 4.3642 -1 1 3 20.46 1.94 4.3412 1 -1 3 24.84 47.19 3.5848 0 0 4 25.37 22.87 3.5112 -3 3 0 25.42 22.71 3.5033 -3 -3 2 25.44 1.19 3.5006 0 -2 4 25.45 24.89 3.5001 -6 0 2 28.22 24.12 3.1622 -3 3 2 28.30 26.02 3.1531 3 3 0 28.35 23.49 3.1486 -6 0 4 28.38 25.00 3.1446 3 -3 2 28.40 24.57 3.1422 -3 -3 4 28.41 21.30 3.1421 6 0 0 30.51 1.62 2.9299 0 4 0 30.64 1.16 2.9182 -6 2 0 31.18 1.96 2.8686 -6 2 3 31.29 2.08 2.8587 -6 -2 1 32.97 1.52 2.7164 6 -2 1 32.97 1.52 2.7164 -6 -2 5 33.98 1.10 2.6385 0 -4 4 35.67 5.03 2.5173 -3 3 4 35.76 4.54 2.5110 3 3 2 35.81 5.37 2.5077 -6 0 6 35.91 5.01 2.5011 6 0 2 35.92 4.34 2.5001 -3 -3 6 35.93 4.52 2.4997 3 -3 4 37.64 4.09 2.3899 0 0 6 39.26 1.17 2.2946 3 -5 1 39.32 1.51 2.2912 -3 -5 3 39.35 1.72 2.2899 -9 1 3 39.39 1.02 2.2875 -3 5 0 39.40 1.97 2.2871 -9 -1 3 39.47 1.25 2.2833 -6 4 0 39.56 1.23 2.2783 -6 -4 4 44.72 8.30 2.0263 0 -6 2 44.77 7.92 2.0245 -9 3 2 44.87 9.00 2.0199 -9 -3 4 45.78 4.62 1.9822 -3 3 6 45.87 5.17 1.9783 3 3 4 45.92 4.98 1.9761 -6 0 8 46.04 4.10 1.9713 6 0 4 46.07 4.86 1.9702 -3 -3 8 46.09 5.42 1.9692 3 -3 6 46.49 3.23 1.9533 0 6 0 46.55 3.10 1.9511 -9 3 4 46.66 2.90 1.9465 0 -6 4 46.69 2.71 1.9454 -9 3 0 46.71 2.64 1.9447 -9 -3 2 46.73 2.69 1.9437 -9 -3 6 50.95 5.33 1.7924 0 0 8 51.67 3.21 1.7690 0 6 2 51.73 3.25 1.7670 -9 3 6 51.94 3.43 1.7605 9 3 0 51.99 3.65 1.7590 0 -6 6 51.99 3.83 1.7590 -9 -3 8 52.00 3.35 1.7586 9 -3 2 52.10 2.46 1.7556 -6 6 0 52.22 2.63 1.7516 -6 -6 4 52.27 2.00 1.7501 -12 0 4 53.66 2.06 1.7080 -6 6 2 53.82 2.03 1.7033 -6 -6 2 53.85 1.87 1.7025 6 -6 2 53.89 2.40 1.7012 -12 0 6 53.94 2.31 1.6999 -6 -6 6 53.96 2.40 1.6991 -12 0 2 57.57 1.50 1.6010 -3 3 8 57.67 1.36 1.5985 3 3 6 57.72 1.69 1.5971 -6 0 10 57.86 1.47 1.5937 6 0 6 57.89 1.38 1.5929 -3 -3 10 57.93 1.29 1.5919 3 -3 8 58.36 1.34 1.5811 -6 6 4 58.55 1.26 1.5765 6 6 0 58.72 1.17 1.5723 6 -6 4 58.77 1.11 1.5711 -6 -6 8 59.63 1.05 1.5506 0 6 4 59.70 1.02 1.5490 -9 3 8 66.30 1.03 1.4099 -6 -6 10 70.24 1.16 1.3400 -9 -3 12 70.35 1.08 1.3382 0 -6 10 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.