Tsumebite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R080020 Fanfani L, Zanazzi P F Mineralogical Magazine 36 (1967) 522-529 Structural similarities of some secondary lead minerals Locality: Tsumeb, South West Africa Note: coordinates of O atoms are from arsentsumebite CELL PARAMETERS: 7.8840 5.7832 8.6910 90.000 111.756 90.000 SPACE GROUP: P2_1/m ATOM X Y Z OCCUPANCY ISO(B) Pb 0.72900 0.25000 0.25000 1.000 1.500 Pb 0.28800 0.25000 0.39300 1.000 1.500 Cu 0.00000 0.00000 0.00000 1.000 0.700 Cu 0.00000 0.50000 0.00000 1.000 0.700 S 0.45400 0.75000 0.17100 1.000 1.000 P 0.03200 0.75000 0.34000 1.000 0.500 OH 0.17070 0.25000 0.08110 1.000 1.000 O -0.24130 0.25000 -0.46820 1.000 1.000 O 0.09280 0.25000 0.55630 1.000 1.000 O 0.43360 0.25000 0.93460 1.000 1.000 O 0.77540 0.25000 -0.05430 1.000 1.000 O -0.00020 0.03020 -0.24100 1.000 1.000 O 0.50990 0.02520 -0.28750 1.000 1.000 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 6 +/- 5 +/- 7 MAX. ABS. INTENSITY / VOLUME**2: 92.90133713 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.96 13.29 8.0719 0 0 1 18.88 73.07 4.7012 0 1 1 19.15 7.92 4.6354 1 0 1 20.12 9.30 4.4127 -1 1 1 20.82 2.81 4.2657 -1 0 2 22.02 6.58 4.0360 0 0 2 22.65 15.55 3.9264 -2 0 1 24.31 13.43 3.6612 2 0 0 24.61 25.16 3.6169 1 1 1 25.96 7.79 3.4329 -1 1 2 26.11 12.66 3.4135 -2 0 2 26.94 18.38 3.3097 0 1 2 27.46 100.00 3.2484 -2 1 1 28.95 15.76 3.0842 1 0 2 30.31 8.34 2.9484 2 0 1 30.41 23.27 2.9396 -2 1 2 30.87 41.96 2.8970 -1 0 3 30.92 32.86 2.8916 0 2 0 32.90 13.81 2.7222 0 2 1 32.91 42.39 2.7214 1 1 2 33.22 1.40 2.6970 -2 0 3 33.30 4.13 2.6906 0 0 3 33.31 5.52 2.6895 1 2 0 33.66 6.55 2.6626 -1 2 1 34.13 25.25 2.6267 2 1 1 34.63 2.96 2.5902 -1 1 3 35.22 2.60 2.5483 -3 0 2 36.77 3.35 2.4443 -2 1 3 36.82 7.17 2.4408 3 0 0 37.58 9.62 2.3935 -1 2 2 38.29 4.01 2.3506 0 2 2 38.67 1.02 2.3283 -2 2 1 39.60 5.02 2.2756 -3 0 3 39.72 40.61 2.2692 2 2 0 39.74 9.57 2.2680 1 0 3 40.90 6.01 2.2064 -2 2 2 42.00 1.47 2.1514 2 1 2 42.38 1.70 2.1328 -2 0 4 42.48 2.44 2.1280 3 0 1 42.70 1.63 2.1176 -3 1 3 42.87 2.46 2.1095 1 2 2 44.26 19.20 2.0466 -1 2 3 44.76 19.65 2.0247 -1 1 4 45.41 8.62 1.9971 3 1 1 46.02 8.71 1.9723 -2 2 3 46.24 6.52 1.9632 -4 0 2 46.78 1.61 1.9419 -3 2 1 48.55 8.26 1.8750 0 3 1 48.70 7.07 1.8698 -4 0 3 48.83 1.24 1.8652 3 2 0 49.00 5.81 1.8590 -4 1 2 49.31 19.10 1.8480 -3 1 4 49.37 10.39 1.8459 -4 1 1 49.81 9.49 1.8306 4 0 0 51.07 8.05 1.7883 -3 2 3 51.19 14.19 1.7846 1 2 3 51.22 1.07 1.7835 1 0 4 51.33 3.04 1.7799 1 3 1 52.06 1.01 1.7567 -1 3 2 52.61 2.73 1.7395 0 3 2 52.88 1.51 1.7312 -1 2 4 52.91 11.71 1.7304 -2 3 1 52.95 4.79 1.7293 3 1 2 53.39 1.46 1.7159 -1 0 5 53.46 7.51 1.7139 3 2 1 53.79 10.09 1.7043 1 1 4 54.68 3.75 1.6786 -2 3 2 55.39 4.14 1.6588 -3 0 5 55.89 2.41 1.6450 -1 1 5 56.19 1.56 1.6369 -4 1 4 56.28 8.13 1.6347 1 3 2 56.67 8.39 1.6242 -4 2 2 57.01 1.60 1.6155 -4 2 1 57.05 1.54 1.6144 0 0 5 57.08 3.65 1.6135 2 3 1 57.83 2.82 1.5945 -3 1 5 58.81 2.24 1.5701 -4 2 3 59.44 1.30 1.5549 0 1 5 59.65 1.07 1.5499 -5 0 3 59.79 2.18 1.5467 4 2 0 59.86 6.39 1.5451 3 0 3 60.27 3.75 1.5356 3 2 2 62.19 1.58 1.4927 -5 1 1 62.31 1.71 1.4900 2 1 4 62.99 6.68 1.4757 -1 2 5 63.43 1.37 1.4664 1 0 5 64.31 2.28 1.4485 -2 0 6 64.45 7.52 1.4458 0 4 0 64.80 4.89 1.4387 -1 3 4 65.31 2.57 1.4287 3 3 1 65.39 2.28 1.4273 -5 1 4 65.69 1.04 1.4214 1 1 5 65.76 1.16 1.4200 -1 0 6 67.88 1.82 1.3808 -3 1 6 68.18 1.95 1.3755 -4 3 2 68.43 6.61 1.3710 -3 3 4 68.48 3.95 1.3701 -4 3 1 68.75 1.58 1.3654 -5 0 5 68.90 4.88 1.3628 3 2 3 69.02 2.22 1.3607 2 2 4 69.25 1.09 1.3567 -2 4 1 69.33 1.29 1.3554 5 0 1 69.96 1.44 1.3447 2 4 0 70.77 1.49 1.3313 -2 4 2 71.45 1.64 1.3204 3 3 2 71.49 2.40 1.3197 5 1 1 72.07 1.02 1.3105 -6 0 2 72.15 3.97 1.3091 1 3 4 72.16 1.80 1.3091 1 4 2 72.32 3.07 1.3065 5 2 0 72.86 1.01 1.2981 2 4 1 72.89 1.59 1.2977 3 1 4 73.06 1.60 1.2951 -2 2 6 73.16 5.41 1.2936 -1 4 3 74.20 1.57 1.2781 -6 1 2 74.30 2.20 1.2765 -6 1 3 74.34 1.87 1.2760 -3 2 6 75.63 1.23 1.2574 -3 3 5 76.26 2.29 1.2486 -6 1 1 76.33 1.25 1.2475 -5 0 6 76.57 2.08 1.2443 -6 1 4 76.59 1.35 1.2439 3 4 0 77.28 5.45 1.2347 -5 2 5 78.40 2.14 1.2198 0 2 6 78.45 1.73 1.2192 1 4 3 79.01 1.90 1.2118 -2 1 7 79.15 2.66 1.2100 5 1 2 80.56 1.48 1.1924 2 2 5 80.56 2.29 1.1923 -6 2 3 80.79 1.12 1.1896 4 2 3 82.34 2.25 1.1711 -4 1 7 82.94 1.63 1.1642 -4 4 2 84.60 1.02 1.1455 -5 2 6 84.71 1.02 1.1443 -3 3 6 84.76 2.13 1.1438 -4 4 3 85.45 1.34 1.1363 4 1 4 85.60 2.71 1.1346 4 4 0 85.66 1.48 1.1340 2 0 6 85.95 3.32 1.1309 0 1 7 86.57 1.23 1.1244 6 2 0 87.82 1.05 1.1116 -5 1 7 88.03 2.87 1.1095 -2 5 1 88.10 1.21 1.1088 5 3 1 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.