Polybasite Bindi L, Menchetti S American Mineralogist 94 (2009) 151-155 Adding further complexity to the polybasite structure: The role of Ag in the B layer of the -M2a2b2c polytype Locality: Gowganda, Timiskaming District, Ontario, Canada _database_code_amcsd 0004814 CELL PARAMETERS: 26.2625 15.1623 24.1061 90.000 90.045 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 9599.044 Density (g/cm3): 6.352 MAX. ABS. INTENSITY / VOLUME**2: 36.36968471 RIR: 1.864 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.33 24.91 12.0530 0 0 2 2 13.49 5.02 6.5656 4 0 0 2 13.49 9.24 6.5655 2 2 0 4 13.79 1.12 6.4193 -3 1 2 4 14.70 11.22 6.0265 0 0 4 2 15.36 1.02 5.7676 -4 0 2 2 15.37 1.86 5.7666 -2 2 2 4 15.37 1.17 5.7647 2 2 2 4 17.87 1.13 4.9631 4 2 0 4 19.34 2.33 4.5905 -5 1 2 4 19.34 2.54 4.5890 1 3 2 4 20.00 1.71 4.4406 -2 2 4 4 22.13 1.99 4.0177 0 0 6 2 24.44 3.06 3.6419 7 1 0 4 24.44 3.11 3.6419 5 3 0 4 24.61 1.39 3.6167 -6 2 2 4 24.62 1.41 3.6160 0 4 2 4 24.72 2.09 3.6013 -5 3 1 4 24.73 1.06 3.6007 7 1 1 4 25.55 1.48 3.4864 -2 4 2 4 26.00 1.00 3.4276 -2 2 6 4 26.01 2.42 3.4264 2 2 6 4 26.87 1.53 3.3178 -5 3 3 4 26.88 1.42 3.3168 2 4 3 4 26.89 1.70 3.3162 7 1 3 4 27.16 2.90 3.2828 8 0 0 2 27.16 7.43 3.2828 4 4 0 4 27.80 6.73 3.2097 -6 2 4 4 27.80 7.10 3.2086 0 4 4 4 27.81 7.20 3.2077 6 2 4 4 28.17 9.19 3.1681 -8 0 2 2 28.17 57.61 3.1677 -4 4 2 4 28.18 15.69 3.1671 4 4 2 4 28.18 29.01 3.1668 8 0 2 2 28.63 1.81 3.1180 -7 1 4 4 28.65 1.35 3.1162 5 3 4 4 29.65 100.00 3.0133 0 0 8 2 29.89 1.09 2.9895 -7 3 1 4 29.89 5.64 2.9890 8 2 1 4 30.43 1.26 2.9374 -2 0 8 2 30.58 12.89 2.9230 -7 3 2 4 30.59 13.75 2.9226 -1 5 2 4 30.59 3.16 2.9225 1 5 2 4 30.59 5.02 2.9222 7 3 2 4 31.01 6.20 2.8838 -8 0 4 2 31.02 44.71 2.8833 -4 4 4 4 31.03 12.61 2.8823 4 4 4 4 31.03 23.88 2.8819 8 0 4 2 31.21 4.17 2.8655 9 1 0 4 31.21 4.04 2.8654 3 5 0 4 31.44 2.53 2.8456 -6 4 1 4 31.71 7.19 2.8215 -8 2 3 4 31.73 10.52 2.8201 8 2 3 4 32.11 3.84 2.7879 -3 5 2 4 32.11 1.44 2.7876 3 5 2 4 32.11 4.54 2.7873 9 1 2 4 32.69 3.42 2.7390 -2 2 8 4 32.70 1.00 2.7382 2 2 8 4 32.71 1.41 2.7378 4 0 8 2 33.19 2.85 2.6994 -6 4 3 4 33.20 1.60 2.6985 6 4 3 4 33.20 1.06 2.6983 9 1 3 4 33.21 1.17 2.6980 2 4 6 4 33.24 11.81 2.6953 -7 3 4 4 33.25 10.97 2.6947 -1 5 4 4 33.25 12.26 2.6945 1 5 4 4 33.26 12.33 2.6939 7 3 4 4 34.65 1.59 2.5886 -9 1 4 4 34.66 2.10 2.5881 -3 5 4 4 34.67 2.21 2.5875 3 5 4 4 34.67 1.04 2.5873 6 4 4 4 34.67 1.36 2.5871 9 1 4 4 34.84 1.16 2.5749 5 1 8 4 35.11 8.25 2.5556 -8 2 5 4 35.14 5.50 2.5540 8 2 5 4 35.29 10.56 2.5431 -8 0 6 2 35.30 28.43 2.5426 -4 4 6 4 35.31 24.06 2.5416 4 4 6 4 35.32 14.97 2.5411 8 0 6 2 35.52 5.02 2.5271 9 3 0 4 35.52 1.37 2.5271 0 6 0 2 35.73 1.55 2.5133 0 6 1 4 35.73 1.08 2.5131 9 3 1 4 36.32 2.06 2.4737 -9 3 2 4 36.33 2.24 2.4730 9 3 2 4 36.46 1.17 2.4641 -9 1 5 4 36.47 1.81 2.4638 -6 4 5 4 36.49 2.92 2.4627 6 4 5 4 36.98 1.74 2.4309 -10 2 2 4 36.98 12.03 2.4309 -8 4 2 4 36.98 13.05 2.4306 -2 6 2 4 36.99 1.19 2.4305 2 6 2 4 36.99 1.28 2.4303 8 4 2 4 36.99 12.86 2.4302 10 2 2 4 37.31 9.30 2.4101 1 5 6 4 37.32 7.48 2.4095 7 3 6 4 38.14 5.02 2.3596 -6 2 8 4 38.15 7.27 2.3588 0 4 8 4 38.17 6.44 2.3580 6 2 8 4 38.58 5.70 2.3338 -9 1 6 4 38.60 5.06 2.3326 3 5 6 4 38.78 1.06 2.3222 -5 3 8 4 38.80 1.35 2.3210 5 3 8 4 38.80 1.04 2.3208 7 1 8 4 39.21 1.55 2.2977 -3 1 10 4 39.22 1.63 2.2968 3 1 10 4 39.74 3.57 2.2682 -8 2 7 4 39.83 1.35 2.2635 -4 0 10 2 39.83 1.06 2.2632 -2 2 10 4 39.84 3.09 2.2626 2 2 10 4 40.63 10.58 2.2208 -8 0 8 2 40.63 8.58 2.2203 -4 4 8 4 40.65 21.30 2.2194 4 4 8 4 40.66 3.46 2.2190 8 0 8 2 40.98 1.47 2.2021 6 4 7 4 41.25 1.95 2.1885 6 6 0 4 41.64 1.30 2.1690 -5 1 10 4 41.65 1.97 2.1682 1 3 10 4 41.86 1.11 2.1583 -5 3 9 4 41.95 1.72 2.1534 -6 6 2 4 42.02 1.31 2.1500 10 4 1 4 42.42 1.67 2.1311 -7 3 8 4 42.43 1.66 2.1303 1 5 8 4 42.44 1.60 2.1298 7 3 8 4 42.54 2.73 2.1252 -11 3 2 4 42.55 2.94 2.1249 1 7 2 4 42.82 2.05 2.1120 -10 2 6 4 42.84 2.80 2.1111 2 6 6 4 42.84 2.05 2.1107 8 4 6 4 43.57 1.34 2.0773 -9 1 8 4 43.59 1.22 2.0762 3 5 8 4 43.60 1.50 2.0757 9 1 8 4 44.01 3.26 2.0576 -12 0 4 2 44.03 7.49 2.0568 6 6 4 4 44.53 7.67 2.0348 -6 2 10 4 44.54 6.73 2.0341 0 4 10 4 44.56 6.18 2.0335 6 2 10 4 45.13 1.02 2.0088 0 0 12 2 45.69 1.57 1.9856 -9 5 4 4 45.70 1.30 1.9854 -3 7 4 4 46.74 6.46 1.9434 -4 4 10 4 46.77 3.75 1.9423 8 0 10 2 47.31 1.56 1.9216 6 6 6 4 47.32 2.38 1.9211 -2 2 12 4 47.33 1.75 1.9205 4 0 12 2 47.45 1.10 1.9161 -8 4 8 4 47.46 2.25 1.9157 -2 6 8 4 47.48 1.67 1.9149 10 2 8 4 47.83 1.20 1.9017 -1 7 6 4 47.85 1.44 1.9011 11 3 6 4 48.00 27.09 1.8953 12 4 0 4 48.00 15.16 1.8953 0 8 0 2 48.34 1.29 1.8828 -7 3 10 4 48.36 1.21 1.8823 -1 5 10 4 48.62 2.36 1.8725 -12 4 2 4 48.63 2.50 1.8723 0 8 2 4 48.63 2.73 1.8721 12 4 2 4 49.43 1.37 1.8440 9 1 10 4 50.70 1.21 1.8007 -10 6 2 4 51.63 1.00 1.7704 6 6 8 4 52.48 1.24 1.7435 -14 2 4 4 52.50 1.11 1.7430 4 8 4 4 52.94 1.25 1.7296 -8 4 10 4 52.98 1.22 1.7285 10 2 10 4 53.21 1.66 1.7215 -9 7 2 4 53.22 1.71 1.7213 15 1 2 4 53.44 3.11 1.7146 -12 4 6 4 53.45 3.07 1.7141 0 8 6 4 53.47 6.81 1.7138 -4 4 12 4 53.47 3.32 1.7137 12 4 6 4 53.50 3.46 1.7129 8 0 12 2 54.92 1.41 1.6718 -7 3 12 4 54.93 1.19 1.6714 -1 5 12 4 54.94 1.33 1.6712 1 5 12 4 54.95 1.13 1.6708 7 3 12 4 55.15 1.20 1.6654 2 2 14 4 56.58 1.74 1.6266 -16 0 2 2 56.59 1.16 1.6265 -8 8 2 4 56.59 2.52 1.6263 8 8 2 4 56.83 1.17 1.6200 6 6 10 4 57.42 2.70 1.6048 -12 4 8 4 57.44 2.92 1.6043 0 8 8 4 57.46 2.50 1.6039 12 4 8 4 57.75 1.12 1.5964 -9 7 6 4 58.25 1.47 1.5840 -16 0 4 2 58.27 3.99 1.5835 8 8 4 4 60.72 2.34 1.5253 -8 0 14 2 60.73 2.12 1.5251 -4 4 14 4 60.75 5.35 1.5246 4 4 14 4 60.76 1.13 1.5244 8 0 14 2 60.96 1.09 1.5199 -16 0 6 2 60.97 1.15 1.5197 -8 8 6 4 60.99 3.12 1.5193 8 8 6 4 61.55 2.90 1.5066 0 0 16 2 62.30 1.19 1.4904 -12 4 10 4 62.32 1.21 1.4899 0 8 10 4 62.34 1.54 1.4895 12 4 10 4 64.65 3.08 1.4416 -8 8 8 4 64.68 1.47 1.4412 8 8 8 4 64.69 1.57 1.4409 16 0 8 2 68.54 1.16 1.3691 4 4 16 4 74.69 1.69 1.2708 8 8 12 4 77.30 1.08 1.2343 -16 8 2 4 77.31 1.07 1.2343 -4 12 2 4 79.52 1.05 1.2053 0 0 20 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.