Alamosite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern of R060067 Boucher M L, Peacor D R Zeitschrift fur Kristallographie 126 (1968) 98-111 The crystal structure of alamosite, PbSiO3 Locality: Alamos, Sonora, Mexico CELL PARAMETERS: 11.1950 7.0372 12.2090 90.000 113.063 90.000 SPACE GROUP: P2/n ATOM X Y Z OCCUPANCY ISO(B) Pb 0.54470 0.06670 0.67390 1.000 0.650 Pb 0.40960 0.38570 0.84690 1.000 0.530 Pb 0.29890 0.30410 0.09990 1.000 0.570 Si 0.61800 0.12540 0.15390 1.000 0.350 Si 0.52920 0.40700 0.39140 1.000 0.440 Si 0.71220 0.18240 0.96160 1.000 0.200 O 0.50000 0.50000 0.50000 1.000 0.770 O 0.75000 0.22490 0.25000 1.000 0.740 O 0.64180 0.24580 0.45760 1.000 1.490 O 0.65810 0.05970 0.04190 1.000 0.570 O 0.50700 0.28750 0.10710 1.000 0.340 O 0.57580 0.94420 0.21320 1.000 1.100 O 0.40410 0.29350 0.30360 1.000 0.730 O 0.42090 0.42650 0.67100 1.000 0.770 O 0.62690 0.37280 0.91590 1.000 1.220 O 0.71390 0.04970 0.85380 1.000 0.250 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 9 +/- 6 +/- 10 MAX. ABS. INTENSITY / VOLUME**2: 45.82447107 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 13.75 26.43 6.4386 1 0 1 14.85 2.34 5.9636 0 1 1 15.25 70.57 5.8106 1 1 0 15.54 97.81 5.7006 -1 1 1 15.78 14.01 5.6166 0 0 2 17.22 14.39 5.1501 2 0 0 18.25 3.59 4.8612 -2 0 2 18.68 4.48 4.7503 1 1 1 20.23 11.60 4.3898 0 1 2 20.30 1.49 4.3737 -2 1 1 21.38 7.78 4.1560 2 1 0 21.85 17.70 4.0678 -1 0 3 22.23 1.96 3.9997 -2 1 2 23.95 7.08 3.7154 -3 0 1 25.09 100.00 3.5497 2 1 1 25.29 88.88 3.5217 -1 1 3 26.53 54.46 3.3597 -2 1 3 26.55 1.81 3.3577 0 2 1 26.77 83.95 3.3297 1 2 0 26.97 21.49 3.3056 0 1 3 27.14 47.98 3.2856 -3 1 1 27.52 71.70 3.2408 -3 0 3 27.65 13.05 3.2259 -3 1 2 27.71 42.99 3.2193 2 0 2 28.37 9.73 3.1456 1 0 3 28.92 18.58 3.0876 1 2 1 29.40 54.48 3.0379 -1 2 2 29.67 44.61 3.0106 -2 0 4 29.97 13.55 2.9818 0 2 2 30.02 12.12 2.9767 -2 2 1 30.05 52.59 2.9739 3 0 1 30.54 7.36 2.9275 2 1 2 30.78 42.63 2.9053 2 2 0 31.14 27.72 2.8718 1 1 3 31.38 11.09 2.8503 -2 2 2 31.87 43.71 2.8083 0 0 4 32.06 67.63 2.7914 -4 0 2 32.19 16.71 2.7807 -1 1 4 32.69 26.39 2.7393 3 1 1 32.96 30.99 2.7172 1 2 2 33.52 10.22 2.6732 2 2 1 33.68 34.06 2.6612 -1 2 3 34.38 7.32 2.6083 0 1 4 34.57 2.96 2.5947 -4 1 2 34.64 24.93 2.5892 -2 2 3 34.81 1.69 2.5771 -3 1 4 34.99 1.30 2.5641 0 2 3 35.13 1.60 2.5548 -3 2 1 35.53 41.61 2.5264 -3 2 2 36.57 16.65 2.4574 3 2 0 36.98 4.21 2.4306 -4 0 4 37.05 1.08 2.4264 2 1 3 37.18 5.56 2.4182 4 1 0 37.48 11.18 2.3994 -1 0 5 37.88 10.71 2.3752 2 2 2 38.37 18.36 2.3457 0 3 0 38.57 14.34 2.3344 1 1 4 39.21 13.71 2.2974 -4 1 4 39.23 46.70 2.2962 0 3 1 39.26 1.13 2.2947 -1 2 4 39.39 2.87 2.2875 -2 2 4 39.40 1.77 2.2872 1 3 0 39.68 2.38 2.2713 3 2 1 40.50 2.69 2.2273 -3 1 5 40.90 4.55 2.2065 -5 0 3 40.95 6.66 2.2040 1 3 1 40.96 2.89 2.2032 4 1 1 41.28 1.72 2.1868 -4 2 2 41.49 4.34 2.1763 -3 2 4 41.62 5.12 2.1697 -4 2 1 41.77 2.32 2.1626 -2 3 1 42.23 6.81 2.1402 0 1 5 42.26 11.30 2.1385 2 0 4 42.38 27.13 2.1329 -5 1 2 42.56 5.27 2.1241 -4 2 3 42.80 1.01 2.1126 -2 3 2 42.96 1.72 2.1055 -5 1 3 43.39 7.56 2.0856 -5 1 1 43.76 5.93 2.0686 -4 1 5 44.05 20.97 2.0555 4 0 2 44.11 4.38 2.0529 3 1 3 44.47 7.61 2.0374 2 3 1 44.52 1.20 2.0353 1 0 5 44.55 14.22 2.0339 -2 0 6 44.59 4.99 2.0321 -1 3 3 44.78 39.17 2.0241 1 2 4 45.24 3.10 2.0045 -2 2 5 45.35 8.28 1.9999 -4 2 4 45.36 3.26 1.9995 -2 3 3 45.64 1.37 1.9879 0 3 3 46.00 1.85 1.9731 4 1 2 46.07 6.70 1.9701 -3 3 2 46.44 9.04 1.9552 1 1 5 46.48 2.35 1.9539 -2 1 6 46.50 4.14 1.9531 -3 2 5 46.71 1.95 1.9445 -5 0 5 46.91 18.56 1.9368 4 2 1 47.08 13.44 1.9301 -3 1 6 47.56 3.84 1.9118 -4 0 6 47.63 1.31 1.9094 -1 1 6 47.87 7.40 1.9002 -3 3 3 47.91 2.31 1.8986 5 0 1 47.99 1.51 1.8958 2 3 2 48.05 2.08 1.8936 0 2 5 48.19 6.89 1.8885 -5 2 2 48.41 1.42 1.8804 1 3 3 48.58 7.76 1.8743 -5 1 5 48.63 3.84 1.8722 0 0 6 48.71 2.08 1.8694 -5 2 3 49.10 12.32 1.8554 -5 2 1 49.40 13.32 1.8450 -4 1 6 49.44 5.54 1.8434 -4 2 5 49.49 6.75 1.8418 3 3 1 49.74 10.15 1.8330 5 1 1 49.76 3.47 1.8323 3 2 3 49.90 2.20 1.8274 2 2 4 50.27 1.63 1.8149 -6 0 4 50.44 2.23 1.8093 0 1 6 50.64 1.42 1.8025 -5 2 4 50.71 9.97 1.8003 0 3 4 50.83 4.67 1.7962 -6 1 2 50.84 10.76 1.7958 -4 3 2 51.02 7.23 1.7900 -3 3 4 51.11 4.01 1.7872 3 1 4 51.13 8.63 1.7863 -4 3 1 51.40 4.72 1.7778 5 2 0 51.94 12.58 1.7606 -4 3 3 51.98 2.37 1.7593 0 4 0 52.02 4.30 1.7580 4 1 3 52.03 4.30 1.7575 2 1 5 52.04 7.52 1.7574 -6 1 4 52.30 11.67 1.7493 -6 1 1 52.49 21.12 1.7434 -3 2 6 52.65 1.59 1.7383 -3 0 7 52.69 12.86 1.7371 2 3 3 52.79 1.75 1.7342 1 4 0 52.89 4.89 1.7312 -1 4 1 52.99 1.92 1.7281 -1 2 6 53.25 4.55 1.7201 -5 1 6 53.33 1.77 1.7178 3 3 2 53.37 1.66 1.7167 6 0 0 53.85 4.04 1.7024 1 3 4 53.87 5.56 1.7019 -5 2 5 54.26 11.32 1.6907 -2 3 5 54.30 3.78 1.6895 -1 0 7 54.33 15.61 1.6887 -1 4 2 54.35 1.05 1.6879 -4 3 4 54.36 3.40 1.6876 -3 1 7 54.39 1.82 1.6869 -2 1 7 54.63 3.80 1.6799 -4 2 6 54.65 8.43 1.6796 -6 1 5 54.67 1.04 1.6789 0 4 2 54.70 1.44 1.6780 -2 4 1 54.71 7.26 1.6778 5 1 2 54.73 1.50 1.6771 1 1 6 55.17 2.28 1.6648 2 4 0 55.55 2.87 1.6543 -2 4 2 55.61 9.31 1.6528 0 2 6 55.73 7.03 1.6494 4 3 1 55.89 7.94 1.6450 -6 2 3 55.97 5.83 1.6428 -6 2 2 55.97 7.56 1.6428 -1 1 7 56.23 1.96 1.6359 3 2 4 56.57 2.51 1.6270 1 4 2 56.74 8.56 1.6225 0 3 5 56.93 10.24 1.6174 2 4 1 57.09 1.14 1.6134 4 2 3 57.10 1.02 1.6131 2 2 5 57.12 1.66 1.6126 3 0 5 57.23 1.52 1.6097 4 0 4 57.31 10.98 1.6076 -5 0 7 57.35 4.02 1.6067 -6 2 1 57.68 5.24 1.5982 -2 4 3 57.91 5.54 1.5923 0 4 3 58.00 1.37 1.5901 -3 4 1 58.39 4.09 1.5803 2 3 4 58.45 1.20 1.5791 -6 1 6 58.70 5.22 1.5728 2 0 6 58.74 14.33 1.5719 3 1 5 58.99 8.62 1.5657 3 4 0 59.04 10.15 1.5646 0 1 7 59.06 1.29 1.5641 -5 3 4 59.32 7.59 1.5580 -2 2 7 59.56 17.92 1.5522 -6 2 5 59.62 13.88 1.5508 5 2 2 59.74 1.30 1.5479 5 3 0 59.82 6.03 1.5460 4 3 2 59.92 4.85 1.5438 2 4 2 60.14 12.03 1.5387 -7 0 1 60.18 9.54 1.5376 -7 0 5 60.22 4.79 1.5367 -2 3 6 60.27 2.92 1.5355 1 4 3 60.76 4.48 1.5245 -4 2 7 60.82 1.96 1.5230 -1 2 7 60.91 3.23 1.5211 -1 4 4 61.00 4.44 1.5190 -2 4 4 61.19 5.69 1.5148 -1 3 6 61.21 2.75 1.5142 3 4 1 61.24 1.82 1.5135 -2 0 8 61.99 2.24 1.4970 -5 3 5 62.26 3.38 1.4912 -3 1 8 62.27 2.16 1.4909 0 4 4 62.39 1.53 1.4884 -4 4 2 62.46 2.99 1.4870 6 0 2 62.65 2.50 1.4829 -4 4 1 62.69 2.99 1.4820 -4 3 6 62.80 4.01 1.4797 -2 1 8 63.45 2.62 1.4660 3 2 5 63.56 4.86 1.4638 4 2 4 63.71 1.31 1.4608 6 2 1 64.00 4.74 1.4548 6 1 2 64.11 1.68 1.4526 4 4 0 64.55 1.63 1.4436 -7 2 4 64.79 2.06 1.4390 -7 1 6 64.95 7.87 1.4357 4 3 3 65.20 2.40 1.4310 -6 3 1 66.40 2.96 1.4079 -3 4 5 66.40 4.98 1.4078 4 1 5 67.03 1.35 1.3962 -2 3 7 67.06 1.76 1.3957 -8 0 4 67.21 4.17 1.3929 -1 5 1 67.43 1.43 1.3889 -7 0 7 67.66 1.48 1.3848 -6 0 8 67.70 1.31 1.3840 -4 2 8 67.75 6.50 1.3831 -5 4 2 68.09 2.15 1.3770 0 1 8 68.17 4.44 1.3756 -5 4 3 68.21 1.29 1.3750 1 5 1 68.44 2.92 1.3709 -1 3 7 68.46 2.56 1.3705 -1 5 2 68.49 1.07 1.3700 -5 4 1 68.51 2.51 1.3697 6 2 2 68.54 3.67 1.3690 -8 1 4 68.77 10.06 1.3651 -4 4 5 68.82 1.98 1.3642 7 1 1 69.25 3.91 1.3568 -1 2 8 69.30 1.01 1.3559 -3 0 9 69.51 4.65 1.3524 -8 1 2 69.53 2.60 1.3519 -2 5 2 69.75 2.40 1.3483 -5 4 4 69.94 3.42 1.3451 6 1 3 70.37 1.42 1.3378 5 4 0 70.43 1.19 1.3369 1 5 2 70.76 1.50 1.3314 -3 1 9 70.79 1.72 1.3310 1 4 5 70.84 1.97 1.3302 4 2 5 70.92 2.02 1.3289 3 3 5 71.09 1.18 1.3261 -5 3 7 71.13 3.67 1.3255 -4 1 9 71.19 1.34 1.3245 0 3 7 71.39 6.14 1.3213 3 2 6 71.39 3.37 1.3212 -5 0 9 71.70 3.50 1.3163 -1 4 6 71.71 3.31 1.3162 -3 5 1 71.94 2.70 1.3125 -7 3 2 71.96 1.47 1.3122 -3 5 2 71.96 2.65 1.3122 -7 3 4 72.60 1.24 1.3023 3 5 0 72.65 1.95 1.3014 -1 0 9 72.69 1.41 1.3008 1 1 8 72.82 2.34 1.2988 -8 2 3 72.91 2.11 1.2974 -8 2 4 73.19 1.85 1.2932 7 2 1 73.27 3.40 1.2919 -7 2 7 73.33 1.01 1.2910 -3 5 3 73.37 1.77 1.2904 5 4 1 73.55 1.88 1.2877 5 0 5 73.56 1.62 1.2875 8 0 0 73.62 2.80 1.2866 -7 3 1 73.67 3.09 1.2860 -7 3 5 73.75 5.60 1.2847 1 5 3 73.93 2.25 1.2821 0 4 6 73.94 1.24 1.2819 7 1 2 74.04 4.32 1.2803 -7 1 8 74.08 1.05 1.2797 -1 1 9 74.13 1.07 1.2791 -3 3 8 74.17 1.62 1.2784 -6 4 3 74.41 1.35 1.2750 -2 5 4 74.46 6.55 1.2741 3 4 4 75.08 2.88 1.2652 -3 2 9 75.21 1.20 1.2634 4 4 3 75.22 1.58 1.2632 -6 4 4 75.36 2.56 1.2613 6 0 4 75.43 2.95 1.2602 -6 4 1 75.74 1.20 1.2559 6 3 2 75.86 1.25 1.2542 -6 1 9 76.00 5.29 1.2522 -8 2 1 76.22 2.90 1.2491 -5 4 6 76.41 5.23 1.2465 7 3 0 76.47 3.79 1.2456 -7 3 6 76.97 3.45 1.2389 1 2 8 77.08 4.91 1.2373 2 0 8 77.12 6.08 1.2368 -5 3 8 77.25 1.31 1.2350 4 5 0 77.34 1.68 1.2338 -9 0 5 77.45 1.66 1.2324 1 4 6 77.70 1.12 1.2290 0 1 9 77.72 1.63 1.2287 6 4 0 78.02 5.42 1.2247 -9 1 4 78.12 2.39 1.2234 1 5 4 78.49 1.01 1.2186 -1 4 7 78.92 1.67 1.2130 5 3 4 79.38 3.14 1.2072 -3 5 5 79.82 2.33 1.2016 -4 1 10 79.86 1.24 1.2011 -8 2 7 79.94 2.87 1.2001 -3 1 10 79.97 1.75 1.1997 -2 0 10 79.99 1.49 1.1994 -8 3 4 80.02 1.85 1.1990 7 1 3 80.08 6.00 1.1984 -6 2 9 80.14 5.05 1.1976 -8 1 8 80.51 6.99 1.1930 2 3 7 80.55 1.42 1.1925 -6 3 8 80.86 1.16 1.1888 3 4 5 80.95 2.24 1.1876 4 4 4 81.04 2.14 1.1866 -5 5 3 81.09 2.16 1.1860 6 4 1 81.12 2.80 1.1856 0 4 7 81.18 1.02 1.1849 -8 3 5 81.89 2.44 1.1763 0 2 9 81.95 1.46 1.1757 2 5 4 82.07 1.09 1.1743 -9 0 7 82.51 1.16 1.1691 5 4 3 82.57 3.36 1.1684 1 1 9 82.59 1.01 1.1682 -9 -2 3 82.73 5.22 1.1665 0 6 1 83.00 1.57 1.1635 -8 3 1 83.05 1.60 1.1629 -2 3 9 83.12 1.12 1.1621 5 5 0 83.48 3.97 1.1580 -6 1 10 83.51 2.93 1.1576 1 5 5 83.53 3.27 1.1574 -2 5 6 83.70 2.46 1.1555 4 1 7 83.95 2.12 1.1527 -3 4 8 83.98 1.09 1.1523 -3 5 6 84.08 1.80 1.1512 -1 6 2 84.08 2.39 1.1512 -5 3 9 84.11 1.61 1.1509 -3 2 10 84.31 1.88 1.1487 -8 2 8 84.43 1.52 1.1474 -2 4 8 84.69 1.05 1.1445 8 1 2 84.77 2.33 1.1436 2 6 0 85.28 1.26 1.1380 -1 3 9 85.97 4.67 1.1307 5 5 1 86.07 4.34 1.1296 9 1 0 86.15 1.11 1.1288 5 3 5 86.16 1.10 1.1287 8 3 0 86.20 1.00 1.1283 -1 4 8 86.33 1.52 1.1270 -1 6 3 86.51 1.02 1.1250 0 5 6 87.07 1.33 1.1192 0 6 3 87.22 1.17 1.1177 -7 1 10 87.38 1.64 1.1160 -3 6 2 87.41 1.23 1.1157 -9 1 8 87.52 3.37 1.1147 5 2 6 87.69 1.09 1.1129 4 4 5 87.76 1.76 1.1122 -6 -5 4 87.99 1.50 1.1099 3 6 0 88.78 1.39 1.1020 2 6 2 89.39 1.48 1.0961 9 0 1 89.57 2.24 1.0944 2 3 8 89.62 1.55 1.0938 -3 5 7 89.64 1.29 1.0937 -2 5 7 89.73 1.45 1.0929 -2 6 4 89.80 2.67 1.0921 -8 2 9 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.