Hereroite Siidra O I, Krivovichev S V, Turner R W, Rumsey M S, Spratt J American Mineralogist 98 (2013) 248-255 Crystal chemistry of layered Pb oxychloride minerals with PbO-related structures: Part I. Crystal structure of hereroite, [Pb32O20(O,[_])](AsO4)2[(Si,As,V,Mo)O4]2Cl10 Locality: Kombat mine, Grootfontein, Namibia _database_code_amcsd 0019741 CELL PARAMETERS: 23.1390 22.6840 12.3890 90.000 102.090 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 6358.568 Density (g/cm3): 8.133 MAX. ABS. INTENSITY / VOLUME**2: 205.9829771 RIR: 8.246 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.79 4.48 11.3420 0 2 0 2 9.79 1.68 9.0391 1 1 1 4 12.31 5.27 7.1898 -2 2 1 4 14.77 2.62 5.9991 1 3 1 4 14.85 1.63 5.9659 -1 1 2 4 15.63 10.17 5.6710 0 4 0 2 18.33 1.94 4.8413 -2 4 1 4 21.56 1.49 4.1211 1 5 1 4 22.71 15.99 3.9153 5 1 1 4 23.04 15.49 3.8606 -3 1 3 4 23.53 5.37 3.7807 0 6 0 2 25.31 19.71 3.5184 5 3 1 4 25.43 1.59 3.5021 -2 6 1 4 25.61 19.80 3.4785 -3 3 3 4 27.88 2.44 3.1999 7 1 0 4 29.89 100.00 2.9897 5 5 1 4 29.96 1.73 2.9829 -2 2 4 4 30.07 2.34 2.9721 7 3 0 4 30.14 99.21 2.9652 -3 5 3 4 31.55 17.99 2.8355 0 8 0 2 32.00 42.95 2.7970 -8 0 2 2 32.16 42.59 2.7835 2 0 4 2 35.75 3.64 2.5117 5 7 1 4 35.97 3.64 2.4970 -3 7 3 4 38.28 1.48 2.3513 4 6 3 4 39.37 1.68 2.2885 7 7 0 4 39.74 10.68 2.2684 0 10 0 2 40.10 5.63 2.2486 -8 6 2 4 40.23 5.74 2.2415 2 6 4 4 42.25 1.60 2.1389 -10 2 3 4 45.55 14.83 1.9913 -8 8 2 4 45.65 17.80 1.9875 10 0 2 2 45.67 14.35 1.9864 2 8 4 4 46.35 17.58 1.9589 -6 0 6 2 48.14 1.63 1.8903 0 12 0 2 48.22 1.07 1.8872 -10 6 3 4 51.21 1.51 1.7840 12 2 1 4 51.62 1.82 1.7705 -13 1 1 4 51.84 1.95 1.7636 7 1 5 4 51.90 11.80 1.7618 -8 10 2 4 51.98 1.75 1.7592 10 6 2 4 52.01 11.33 1.7584 2 10 4 4 52.11 1.85 1.7552 -11 1 5 4 52.32 2.05 1.7485 -1 1 7 4 52.62 1.81 1.7393 -6 6 6 4 52.96 1.91 1.7289 -13 3 1 4 53.18 1.74 1.7225 7 3 5 4 53.44 1.93 1.7146 -11 3 5 4 53.65 1.62 1.7084 -1 3 7 4 55.57 13.53 1.6537 -13 5 1 4 55.78 13.15 1.6481 7 5 5 4 56.03 13.76 1.6412 -11 5 5 4 56.24 13.16 1.6358 -1 5 7 4 56.55 5.35 1.6275 10 8 2 4 57.15 5.54 1.6117 -6 8 6 4 57.70 11.41 1.5978 5 13 1 4 57.85 11.42 1.5940 -3 13 3 4 58.97 1.85 1.5662 -8 12 2 4 59.07 1.99 1.5638 2 12 4 4 59.54 1.00 1.5527 7 7 5 4 62.09 4.48 1.4949 10 10 2 4 62.66 4.68 1.4826 -6 10 6 4 66.11 1.38 1.4134 5 15 1 4 66.25 1.38 1.4108 -3 15 3 4 66.90 4.44 1.3985 -16 0 4 2 67.27 4.19 1.3918 4 0 8 2 68.50 1.05 1.3697 10 12 2 4 69.05 1.06 1.3602 -6 12 6 4 74.62 4.15 1.2718 15 5 3 4 75.43 2.93 1.2602 0 18 0 2 75.66 2.23 1.2570 18 0 0 2 75.80 4.49 1.2549 -9 5 9 4 75.85 1.88 1.2543 -16 8 4 4 75.92 2.15 1.2533 12 0 6 2 76.20 1.65 1.2494 4 8 8 4 76.54 3.88 1.2447 -13 13 1 4 76.70 2.44 1.2424 -14 0 8 2 76.72 3.69 1.2423 7 13 5 4 76.93 4.02 1.2393 -11 13 5 4 76.96 2.34 1.2389 -4 0 10 2 77.11 3.89 1.2369 -1 13 7 4 80.72 1.75 1.1905 -16 10 4 4 81.06 1.58 1.1863 4 10 8 4 84.27 1.37 1.1491 18 8 0 4 84.28 3.51 1.1490 -8 18 2 4 84.37 3.43 1.1480 2 18 4 4 84.52 1.26 1.1463 12 8 6 4 85.29 1.50 1.1380 -14 8 8 4 85.54 1.36 1.1353 -4 8 10 4 89.04 1.37 1.0995 18 10 0 4 89.30 1.28 1.0970 12 10 6 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.