Mckelveyite-(Y) Demartin F, Gramaccioli C M, Campostrini I, Diella V The Canadian Mineralogist 46 (2008) 195-203 The crystal structure of mckelveyite-(Y)-2M, a new monoclinic polytype from Val Malenco, Italian Alps Locality: "Cava Fabi," talc quarry near Lanzada, Val Malenco, Lombardy, Italy _database_code_amcsd 0006180 CELL PARAMETERS: 15.8213 9.1364 13.7522 90.000 112.440 90.000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 Cell Volume: 1837.354 Density (g/cm3): 3.534 MAX. ABS. INTENSITY / VOLUME**2: 17.37257296 RIR: 1.601 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.42 13.32 7.7484 1 1 0 2 12.10 8.04 7.3117 2 0 0 1 12.12 3.68 7.3052 -1 1 1 2 13.93 61.68 6.3554 0 0 2 1 14.54 2.27 6.0911 1 1 1 2 14.56 4.42 6.0820 -2 0 2 1 16.15 9.23 5.4883 -1 1 2 2 19.43 19.77 4.5682 0 2 0 2 19.43 39.81 4.5675 -3 1 1 2 19.78 4.00 4.4889 1 1 2 2 20.65 70.18 4.3006 3 1 0 2 20.66 69.88 4.2990 0 2 1 2 20.67 71.66 4.2961 -3 1 2 2 21.75 2.90 4.0862 2 0 2 1 21.78 1.40 4.0812 -1 1 3 2 22.60 5.30 3.9345 -2 2 1 2 22.97 1.21 3.8714 -4 0 2 1 23.97 1.82 3.7119 3 1 1 2 23.99 1.96 3.7094 0 2 2 2 24.01 1.88 3.7061 -3 1 3 2 24.35 2.09 3.6558 4 0 0 1 24.37 1.09 3.6526 -2 2 2 2 25.96 1.72 3.4324 -2 0 4 1 27.89 1.95 3.1995 -2 2 3 2 28.08 33.05 3.1777 0 0 4 1 28.11 1.00 3.1741 -1 1 4 2 28.72 75.60 3.1088 3 1 2 2 28.74 74.88 3.1065 0 2 3 2 28.76 74.72 3.1037 -3 1 4 2 29.97 2.61 2.9815 1 3 0 2 29.97 1.38 2.9814 -4 2 1 2 30.25 3.07 2.9547 -5 1 1 2 30.25 1.76 2.9543 -1 3 1 2 32.15 2.73 2.7838 -1 3 2 2 32.17 4.91 2.7825 -4 2 3 2 33.99 66.57 2.6373 -3 3 1 2 34.00 33.43 2.6369 -6 0 2 1 34.35 23.35 2.6105 3 1 3 2 34.38 23.25 2.6086 0 2 4 2 34.41 23.85 2.6065 -3 1 5 2 35.41 5.31 2.5350 5 1 1 2 35.44 1.49 2.5328 -1 3 3 2 35.46 1.14 2.5314 -4 2 4 2 36.88 9.43 2.4372 6 0 0 1 36.89 18.24 2.4367 3 3 1 2 36.91 18.28 2.4351 -3 3 3 2 36.93 8.90 2.4339 -6 0 4 1 38.24 1.07 2.3536 1 3 3 2 38.29 1.82 2.3509 -5 1 5 2 39.45 8.54 2.2841 0 4 0 2 39.46 16.48 2.2837 -6 2 2 2 39.82 1.26 2.2640 -1 3 4 2 39.84 1.27 2.2626 -4 2 5 2 40.10 20.01 2.2484 -6 2 1 2 40.11 20.66 2.2481 0 4 1 2 40.13 20.74 2.2471 -6 2 3 2 40.59 8.17 2.2229 3 1 4 2 40.61 8.18 2.2214 0 2 5 2 40.64 8.26 2.2197 -3 1 6 2 41.21 1.25 2.1907 -7 1 2 2 42.02 3.16 2.1503 6 2 0 2 42.03 3.25 2.1495 0 4 2 2 42.06 3.10 2.1481 -6 2 4 2 42.27 1.90 2.1383 -2 4 2 2 42.28 1.60 2.1377 -5 3 3 2 42.68 14.75 2.1185 0 0 6 1 43.17 1.03 2.0955 4 2 3 2 44.49 1.53 2.0365 7 1 0 2 44.61 13.81 2.0311 6 0 2 1 44.63 26.68 2.0304 3 3 3 2 44.67 28.01 2.0285 -3 3 5 2 44.70 13.40 2.0273 -6 0 6 1 45.07 31.05 2.0117 6 2 1 2 45.09 30.95 2.0106 0 4 3 2 45.13 30.52 2.0089 -6 2 5 2 47.27 8.06 1.9230 3 1 5 2 47.30 7.70 1.9219 0 2 6 2 47.33 7.77 1.9206 -3 1 7 2 48.98 1.13 1.8598 4 4 1 2 49.09 3.63 1.8560 6 2 2 2 49.12 3.79 1.8547 0 4 4 2 49.17 3.72 1.8530 -6 2 6 2 53.04 5.22 1.7266 -3 5 1 2 53.04 5.49 1.7265 -6 4 2 2 53.05 5.49 1.7263 -9 1 3 2 53.56 6.32 1.7110 -6 4 1 2 53.56 6.32 1.7110 3 5 0 2 53.56 5.92 1.7110 -9 1 2 2 53.57 6.11 1.7107 -3 5 2 2 53.58 6.21 1.7105 -6 4 3 2 53.59 6.55 1.7101 -9 1 4 2 53.92 1.19 1.7003 6 2 3 2 53.97 1.13 1.6990 0 4 5 2 54.02 1.16 1.6975 -6 2 7 2 54.34 11.05 1.6883 3 1 6 2 54.37 11.47 1.6874 0 2 7 2 54.40 11.05 1.6864 -3 1 8 2 55.60 5.35 1.6531 6 0 4 1 55.62 11.24 1.6524 3 3 5 2 55.68 10.71 1.6508 -3 3 7 2 55.71 5.56 1.6500 -6 0 8 1 57.62 7.68 1.5997 9 1 0 2 57.63 7.74 1.5995 6 4 1 2 57.64 7.78 1.5993 3 5 2 2 57.67 7.70 1.5986 -3 5 4 2 57.68 7.56 1.5981 -6 4 5 2 57.70 7.63 1.5976 -9 1 6 2 58.05 1.13 1.5889 0 0 8 1 59.47 2.09 1.5544 6 2 4 2 59.51 2.18 1.5532 0 4 6 2 59.57 2.08 1.5518 -6 2 8 2 60.83 5.17 1.5227 0 6 0 2 60.84 10.22 1.5225 -9 3 3 2 61.04 1.72 1.5181 9 1 1 2 61.05 1.65 1.5178 6 4 2 2 61.06 1.59 1.5175 3 5 3 2 61.10 1.75 1.5167 -3 5 5 2 61.12 1.79 1.5162 -6 4 6 2 61.14 1.66 1.5157 -9 1 7 2 61.79 1.20 1.5014 3 1 7 2 61.82 1.25 1.5007 0 2 8 2 61.86 1.24 1.4999 -3 1 9 2 62.73 2.77 1.4812 -9 3 1 2 62.75 2.71 1.4808 0 6 2 2 62.78 2.69 1.4800 -9 3 5 2 65.28 2.19 1.4294 9 1 2 2 65.29 2.07 1.4291 6 4 3 2 65.31 2.12 1.4287 3 5 4 2 65.35 2.26 1.4279 -3 5 6 2 65.38 2.16 1.4274 -6 4 7 2 65.41 2.12 1.4269 -9 1 8 2 65.63 3.00 1.4225 6 2 5 2 65.69 2.87 1.4214 0 4 7 2 65.75 3.06 1.4202 -6 2 9 2 68.27 5.27 1.3739 9 3 1 2 68.31 5.34 1.3732 0 6 4 2 68.37 5.41 1.3721 -9 3 7 2 68.94 1.04 1.3621 6 0 6 1 68.97 1.78 1.3615 3 3 7 2 69.04 2.10 1.3604 -3 3 9 2 69.65 3.67 1.3499 3 1 8 2 69.69 3.79 1.3493 0 2 9 2 69.73 3.65 1.3487 -3 1 10 2 70.28 1.63 1.3395 9 1 3 2 70.29 1.89 1.3391 6 4 4 2 70.32 1.77 1.3388 3 5 5 2 70.37 1.59 1.3380 -3 5 7 2 70.39 1.71 1.3375 -6 4 8 2 70.42 1.81 1.3370 -9 1 9 2 71.55 9.90 1.3187 -6 6 2 2 71.57 4.84 1.3184 -12 0 4 1 73.30 1.38 1.2914 -12 0 2 1 73.31 2.70 1.2914 6 6 0 2 73.34 2.67 1.2909 -6 6 4 2 73.37 1.29 1.2905 -12 0 6 1 74.67 2.94 1.2711 0 0 10 1 75.39 2.29 1.2608 3 7 0 2 75.39 2.25 1.2608 -9 5 2 2 75.39 1.95 1.2607 -12 2 3 2 75.40 2.01 1.2607 -3 7 2 2 75.42 2.03 1.2604 -9 5 4 2 75.43 2.36 1.2603 -12 2 5 2 75.99 4.46 1.2523 9 1 4 2 76.01 4.34 1.2520 6 4 5 2 76.04 4.47 1.2516 3 5 6 2 76.10 4.46 1.2508 -3 5 8 2 76.13 4.44 1.2504 -6 4 9 2 76.16 4.46 1.2499 -9 1 10 2 77.08 4.57 1.2373 9 3 3 2 77.14 4.53 1.2365 0 6 6 2 77.22 4.50 1.2354 -9 3 9 2 77.99 1.35 1.2251 3 1 9 2 78.03 1.32 1.2246 0 2 10 2 78.07 1.34 1.2240 -3 1 11 2 78.49 1.13 1.2186 12 0 0 1 78.51 2.35 1.2184 6 6 2 2 78.57 2.35 1.2175 -6 6 6 2 78.61 1.23 1.2170 -12 0 8 1 78.82 3.51 1.2143 -12 2 1 2 78.83 3.28 1.2142 9 5 0 2 78.84 3.16 1.2140 3 7 2 2 78.87 3.37 1.2137 -3 7 4 2 78.90 3.49 1.2133 -9 5 6 2 78.92 3.22 1.2130 -12 2 7 2 79.78 2.11 1.2021 6 2 7 2 79.85 2.04 1.2012 0 4 9 2 79.92 2.06 1.2003 -6 2 11 2 81.86 1.05 1.1767 -3 7 5 2 81.90 1.06 1.1762 -9 5 7 2 84.57 2.02 1.1459 6 0 8 1 84.60 4.22 1.1455 3 3 9 2 84.68 4.03 1.1446 -3 3 11 2 85.34 1.57 1.1375 0 8 1 2 86.96 1.25 1.1203 12 0 2 1 87.00 2.63 1.1200 6 6 4 2 87.09 2.46 1.1190 -6 6 8 2 87.15 1.29 1.1184 -12 0 10 1 88.68 1.50 1.1030 -12 -4 1 2 88.71 3.06 1.1027 0 8 3 2 88.78 1.49 1.1021 -12 -4 7 2 89.60 1.79 1.0941 9 1 6 2 89.63 1.67 1.0938 6 4 7 2 89.66 1.75 1.0935 3 5 8 2 89.73 1.82 1.0928 -3 5 10 2 89.77 1.74 1.0925 -6 4 11 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.