Fornacite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R060932 Cocco G, Fanfani L, Zanazzi P F Zeitschrift fur Kristallographie 124 (1967) 385-397 The crystal structure of fornacite Locality: Reneville, Congo CELL PARAMETERS: 8.0960 5.9120 17.5350 90.000 109.940 90.000 SPACE GROUP: P2_1/c ATOM X Y Z OCCUPANCY ISO(B) Pb 0.21940 0.21970 0.37570 1.000 1.920 Pb 0.22250 0.77310 0.05890 1.000 1.670 Cu 0.48590 0.50820 0.24860 1.000 1.330 As 0.48650 0.25950 0.08140 0.925 1.610 P 0.48650 0.25950 0.08140 0.075 1.610 Cr 0.05040 0.25970 0.15890 1.000 1.050 O 0.54090 0.02820 0.13770 1.000 2.500 O 0.47230 0.47790 0.13220 1.000 2.500 O 0.29010 0.20880 0.01490 1.000 2.500 O 0.63770 0.31530 0.04760 1.000 2.500 O 0.99410 0.03160 0.10190 1.000 2.500 O 0.00440 0.47260 0.09440 1.000 2.500 O 0.25010 0.24780 0.21350 1.000 2.500 O 0.92710 0.28890 0.21820 1.000 2.500 OH 0.34400 0.76070 0.21920 1.000 2.500 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 0.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 6 +/- 5 +/- 15 MAX. ABS. INTENSITY / VOLUME**2: 102.4507056 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.73 12.99 8.2419 0 0 2 11.63 1.25 7.6106 1 0 0 18.37 2.51 4.8303 1 0 2 18.47 35.46 4.8039 0 1 2 18.64 1.14 4.7609 -1 1 1 19.80 3.67 4.4846 -1 1 2 20.72 1.31 4.2874 -1 0 4 21.56 12.86 4.1209 0 0 4 22.09 1.27 4.0247 0 1 3 22.14 13.80 4.0151 -2 0 2 22.26 3.08 3.9940 -1 1 3 23.38 6.97 3.8053 2 0 0 23.79 25.02 3.7406 1 1 2 25.67 1.46 3.4708 -1 1 4 25.89 5.76 3.4412 -2 0 4 26.36 12.58 3.3807 0 1 4 26.84 100.00 3.3215 -2 1 2 27.92 13.70 3.1961 1 0 4 29.01 5.45 3.0783 2 0 2 30.05 30.92 2.9740 -2 1 4 30.23 31.15 2.9560 0 2 0 30.60 37.13 2.9218 -1 0 6 31.83 38.91 2.8115 1 1 4 32.17 10.72 2.7825 0 2 2 32.27 1.91 2.7740 -1 2 1 32.49 3.06 2.7555 1 2 0 32.59 7.15 2.7473 0 0 6 32.80 29.93 2.7304 2 1 2 32.98 5.80 2.7161 -1 2 2 33.07 1.17 2.7086 -2 0 6 33.63 2.17 2.6648 1 2 1 34.23 4.46 2.6194 -1 1 6 34.63 1.16 2.5904 -3 0 4 35.38 7.00 2.5369 3 0 0 35.61 2.12 2.5213 1 2 2 36.49 3.01 2.4624 -2 1 6 36.94 6.06 2.4336 -1 2 4 37.44 7.27 2.4020 0 2 4 38.44 4.47 2.3416 1 0 6 38.57 23.25 2.3344 2 2 0 39.27 1.85 2.2941 -3 0 6 39.97 1.13 2.2557 -1 2 5 40.22 1.63 2.2423 -2 2 4 40.34 2.08 2.2358 2 1 4 40.62 1.02 2.2210 3 0 2 41.01 1.64 2.2009 0 2 5 41.48 2.53 2.1771 1 1 6 41.62 2.18 2.1701 1 2 4 42.15 1.12 2.1437 -2 0 8 43.53 8.31 2.0791 3 1 2 43.55 17.59 2.0780 -1 2 6 44.18 10.70 2.0501 -1 1 8 44.98 1.62 2.0153 -2 1 8 45.10 1.24 2.0102 -4 0 2 45.17 5.09 2.0075 -4 0 4 45.42 6.12 1.9970 -2 2 6 45.53 1.18 1.9923 -3 2 2 46.03 1.11 1.9718 -3 2 1 47.21 1.66 1.9251 3 2 0 47.43 3.21 1.9166 0 3 2 47.51 1.37 1.9139 -1 3 1 47.79 4.85 1.9032 -4 1 2 47.80 9.24 1.9027 4 0 0 47.85 4.80 1.9009 -4 1 4 47.99 8.94 1.8958 -4 0 6 48.11 2.37 1.8915 3 0 4 48.97 15.90 1.8600 -3 1 8 49.11 1.14 1.8550 0 3 3 49.20 2.66 1.8519 -1 3 3 49.67 5.70 1.8355 1 2 6 49.99 2.55 1.8247 1 3 2 50.35 2.98 1.8123 -3 2 6 50.67 1.51 1.8015 3 1 4 51.40 1.74 1.7778 0 3 4 51.46 4.76 1.7756 3 2 2 51.67 10.05 1.7691 -2 3 2 52.04 1.50 1.7575 -1 2 8 52.14 12.42 1.7544 1 1 8 52.65 2.13 1.7383 -1 0 10 53.59 4.22 1.7101 -2 3 4 54.27 1.14 1.6903 0 2 8 54.72 5.86 1.6774 1 3 4 55.07 1.13 1.6677 -1 1 10 55.13 2.49 1.6660 -3 0 10 55.26 3.30 1.6623 -4 2 2 55.32 6.29 1.6607 -4 2 4 55.35 3.61 1.6597 2 3 2 55.63 1.14 1.6520 -4 1 8 55.77 1.16 1.6484 0 0 10 57.21 6.24 1.6101 3 0 6 57.47 3.55 1.6035 -3 1 10 57.61 2.85 1.5999 4 2 0 57.78 3.70 1.5958 -4 2 6 57.88 5.24 1.5932 3 2 4 58.09 1.01 1.5878 0 1 10 58.13 1.56 1.5870 -3 3 3 59.99 1.67 1.5420 -5 1 2 61.48 1.52 1.5081 1 0 10 61.93 6.84 1.4984 -1 2 10 62.88 4.80 1.4780 0 4 0 63.07 1.65 1.4741 3 3 2 63.57 1.69 1.4636 -1 3 8 63.68 1.28 1.4613 1 1 10 63.70 1.47 1.4609 -2 0 12 64.06 1.12 1.4536 -1 4 1 64.72 1.40 1.4404 -1 0 12 66.08 4.90 1.4140 3 2 6 66.43 1.34 1.4073 -4 3 2 66.48 1.12 1.4063 -4 3 4 67.40 4.40 1.3895 -3 3 8 67.42 1.69 1.3891 -3 1 12 68.12 1.13 1.3765 -5 0 10 68.23 3.90 1.3745 5 1 2 69.46 1.50 1.3533 5 2 0 69.73 1.01 1.3487 0 4 5 69.74 1.16 1.3484 3 1 8 70.02 3.94 1.3438 1 3 8 70.15 1.10 1.3415 1 4 4 71.54 3.42 1.3189 -1 4 6 71.80 3.30 1.3147 -6 1 4 73.30 2.17 1.2914 -6 1 2 73.62 1.18 1.2866 -3 2 12 74.59 1.23 1.2723 -3 3 10 75.08 2.33 1.2652 -6 1 8 75.30 2.05 1.2620 5 1 4 75.83 1.68 1.2545 -5 0 12 76.31 3.22 1.2478 -5 2 10 77.57 1.37 1.2307 2 2 10 78.44 1.48 1.2192 -6 2 6 78.74 1.24 1.2154 -3 1 14 81.32 1.26 1.1831 4 1 8 81.83 1.11 1.1771 -4 1 14 82.36 1.33 1.1708 2 0 12 82.67 1.81 1.1672 4 4 0 82.81 1.76 1.1656 -4 4 6 83.76 1.42 1.1548 -5 2 12 83.77 2.46 1.1547 0 1 14 84.33 1.68 1.1484 5 3 2 85.64 1.50 1.1342 -2 5 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.