Kentrolite Moore P B, Sen Gupta P K, Shen J, Schlemper E O American Mineralogist 76 (1991) 1389-1399 The kentrolite-melanotekite series, 4Pb2(Mn,Fe)2O2[Si2O7]: Chemical crystallographic relations, lone-pair splitting, and cation relation to 8URe2 _database_code_amcsd 0001395 CELL PARAMETERS: 6.9610 11.0180 9.9640 90.000 90.000 90.000 SPACE GROUP: Pbcn X-RAY WAVELENGTH: 1.541838 Cell Volume: 764.202 Density (g/cm3): 6.145 MAX. ABS. INTENSITY / VOLUME**2: 68.98630965 RIR: 3.655 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.05 2.42 5.8849 1 1 0 4 16.09 58.41 5.5090 0 2 0 2 17.50 9.61 5.0671 1 1 1 8 17.80 62.24 4.9820 0 0 2 2 18.40 2.27 4.8212 0 2 1 4 22.43 1.73 3.9634 1 2 1 8 23.40 2.54 3.8024 1 1 2 8 24.08 47.99 3.6951 0 2 2 4 25.59 47.23 3.4805 2 0 0 2 27.33 1.17 3.2638 1 2 2 8 27.46 72.33 3.2483 1 3 0 4 28.34 11.27 3.1488 2 1 1 8 28.91 9.25 3.0883 1 3 1 8 30.38 26.48 2.9425 2 2 0 4 30.92 100.00 2.8925 1 1 3 8 31.35 58.74 2.8532 2 0 2 4 31.45 23.47 2.8444 0 2 3 4 31.71 26.27 2.8220 2 2 1 8 32.51 1.58 2.7545 0 4 0 2 32.92 97.48 2.7210 1 3 2 8 33.76 12.92 2.6549 0 4 1 4 35.43 15.93 2.5336 2 2 2 8 36.06 8.30 2.4910 0 0 4 2 36.21 3.67 2.4806 1 4 1 8 36.70 3.02 2.4488 2 3 1 8 37.30 5.11 2.4106 0 4 2 4 38.38 5.43 2.3454 1 0 4 4 38.78 9.61 2.3223 1 3 3 8 39.56 2.41 2.2779 1 4 2 8 40.76 3.57 2.2138 3 1 1 8 40.98 6.86 2.2025 2 2 3 8 41.82 3.73 2.1599 2 4 0 4 42.64 13.67 2.1202 0 4 3 4 42.84 4.33 2.1109 2 4 1 8 43.00 2.05 2.1034 3 0 2 4 43.06 20.93 2.1008 1 5 0 4 43.27 4.94 2.0908 3 2 1 8 43.82 1.19 2.0661 3 1 2 8 44.74 7.00 2.0257 2 0 4 4 45.79 4.85 1.9817 2 4 2 8 45.91 4.39 1.9767 1 3 4 8 46.20 2.73 1.9650 3 2 2 8 46.28 7.88 1.9616 3 3 0 4 46.94 20.56 1.9358 1 5 2 8 48.21 28.25 1.8875 1 1 5 8 48.57 12.95 1.8744 3 1 3 8 48.58 8.69 1.8740 0 2 5 4 49.65 3.23 1.8363 0 6 0 2 49.97 26.65 1.8252 3 3 2 8 50.40 17.74 1.8107 2 4 3 8 51.52 1.55 1.7737 2 3 4 8 52.37 4.00 1.7471 3 4 1 8 52.47 1.84 1.7440 2 5 2 8 52.59 4.77 1.7402 4 0 0 2 53.16 4.64 1.7230 0 6 2 4 53.98 11.68 1.6986 1 3 5 8 54.01 2.08 1.6979 3 0 4 4 54.14 3.13 1.6939 4 1 1 8 54.31 3.88 1.6890 3 3 3 8 54.70 1.55 1.6780 3 1 4 8 55.32 1.08 1.6607 0 0 6 2 55.71 14.26 1.6500 2 2 5 8 55.97 1.44 1.6429 4 0 2 4 56.38 1.20 1.6319 2 4 4 8 56.67 7.04 1.6241 2 6 0 4 56.74 2.14 1.6225 3 2 4 8 57.04 18.39 1.6146 0 4 5 4 57.33 7.49 1.6071 0 6 3 4 57.68 1.13 1.5982 1 1 6 8 57.69 4.95 1.5979 3 5 0 4 58.01 1.18 1.5900 0 2 6 4 59.01 1.10 1.5652 3 4 3 8 59.51 1.96 1.5534 4 3 1 8 59.90 1.30 1.5442 2 6 2 8 60.03 1.06 1.5411 3 3 4 8 60.28 11.01 1.5352 1 7 0 4 60.66 2.17 1.5266 4 1 3 8 60.89 1.94 1.5215 3 5 2 8 61.87 1.66 1.4997 4 3 2 8 61.96 7.24 1.4977 3 1 5 8 62.26 1.41 1.4913 2 5 4 8 63.40 6.12 1.4672 1 7 2 8 63.52 11.16 1.4646 2 4 5 8 63.79 8.11 1.4590 2 6 3 8 63.97 1.31 1.4554 4 4 1 8 64.42 2.71 1.4462 2 2 6 8 65.42 2.22 1.4266 4 0 4 4 65.50 1.33 1.4251 3 6 1 8 65.65 1.33 1.4222 0 4 6 4 66.24 2.09 1.4110 4 4 2 8 66.93 1.24 1.3980 3 3 5 8 67.17 4.29 1.3936 1 7 3 8 67.73 9.69 1.3835 1 1 7 8 68.03 2.48 1.3782 0 2 7 4 68.08 1.21 1.3772 0 8 0 2 69.03 2.65 1.3605 2 6 4 8 69.62 1.09 1.3504 3 0 6 4 69.62 4.71 1.3504 0 6 5 4 71.01 2.25 1.3275 0 8 2 4 72.00 1.02 1.3116 3 2 6 8 72.29 1.85 1.3070 1 7 4 8 72.50 1.36 1.3037 1 3 7 8 72.56 2.09 1.3028 1 5 6 8 72.58 1.39 1.3026 3 7 0 4 74.02 2.21 1.2806 2 8 0 4 74.38 1.88 1.2753 5 1 3 8 74.60 1.18 1.2722 0 8 3 4 75.13 1.66 1.2646 0 4 7 4 75.43 3.00 1.2602 3 7 2 8 75.48 1.57 1.2595 5 3 2 8 75.52 4.11 1.2590 2 6 5 8 76.67 1.31 1.2429 2 7 4 8 76.86 2.84 1.2403 2 8 2 8 77.40 1.62 1.2330 5 4 1 8 78.50 1.15 1.2185 1 1 8 8 78.67 3.83 1.2162 1 7 5 8 78.78 3.08 1.2148 0 2 8 4 78.95 2.65 1.2127 3 7 3 8 79.47 3.63 1.2060 3 1 7 8 80.14 1.54 1.1975 4 5 4 8 80.19 1.22 1.1970 1 9 1 8 80.88 4.85 1.1885 2 4 7 8 81.02 1.38 1.1867 5 2 4 8 81.28 2.88 1.1836 4 4 5 8 81.53 1.68 1.1806 4 6 3 8 82.20 1.25 1.1727 2 0 8 4 83.04 2.78 1.1629 1 3 8 8 83.81 1.00 1.1543 3 7 4 8 84.06 1.07 1.1514 3 5 6 8 84.46 2.51 1.1470 2 2 8 8 84.54 1.89 1.1461 6 1 1 8 85.72 3.70 1.1333 1 9 3 8 86.51 1.69 1.1250 0 6 7 4 88.72 1.47 1.1026 5 6 1 8 88.80 2.14 1.1018 0 10 0 2 89.82 1.14 1.0920 3 1 8 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.