Anorthite Wenk H R, Joswig W, Tagai T, Korekawa M, Smith B K American Mineralogist 65 (1980) 81-95 The average structure of An 62-66 labradorite Note: studied with X-rays Locality: Surtsey, Iceland _database_code_amcsd 0019662 CELL PARAMETERS: 8.1736 12.8736 7.1022 93.462 116.054 90.475 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 669.647 Density (g/cm3): 2.697 MAX. ABS. INTENSITY / VOLUME**2: 4.606119610 RIR: 0.556 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 13.67 8.51 6.4800 -1 1 0 2 15.23 1.46 5.8182 -1 -1 1 2 18.92 8.02 4.6901 0 -2 1 2 22.00 78.58 4.0406 -2 0 1 2 22.78 17.17 3.9035 1 -1 1 2 23.66 40.45 3.7612 -1 3 0 2 23.67 25.87 3.7592 1 1 1 2 24.48 34.90 3.6362 1 3 0 2 24.58 13.52 3.6221 -1 -3 1 2 25.47 1.37 3.4976 -1 3 1 2 25.66 13.34 3.4711 -1 -1 2 2 26.03 5.14 3.4236 -2 -2 1 2 26.49 25.43 3.3648 -1 1 2 2 27.53 54.38 3.2400 -2 2 0 2 27.79 59.79 3.2101 0 4 0 2 27.87 95.41 3.2012 -2 0 2 2 28.04 100.00 3.1821 0 0 2 2 28.49 43.09 3.1334 2 2 0 2 29.49 23.64 3.0287 1 -3 1 2 30.28 27.07 2.9520 0 -4 1 2 30.45 17.62 2.9356 0 -2 2 2 30.73 10.77 2.9091 -2 -2 2 2 31.56 24.50 2.8350 1 3 1 2 31.79 8.69 2.8151 -1 -3 2 2 33.80 14.60 2.6521 -1 3 2 2 35.24 3.29 2.5466 2 -2 1 2 35.55 5.13 2.5252 1 -1 2 2 35.66 4.08 2.5176 -3 -1 2 2 35.68 30.50 2.5165 -2 -4 1 2 35.77 20.11 2.5104 -2 4 1 2 35.90 1.49 2.5016 -3 1 2 2 36.47 2.22 2.4637 -2 4 0 2 36.81 3.62 2.4414 2 2 1 2 37.15 4.28 2.4200 -3 1 0 2 37.23 4.74 2.4153 -1 -5 1 2 37.71 3.24 2.3857 3 1 0 2 37.95 3.74 2.3707 2 4 0 2 38.25 3.31 2.3529 -1 5 1 2 39.02 5.89 2.3084 -3 3 1 2 39.49 6.39 2.2820 -3 -3 1 2 39.77 3.17 2.2666 -1 1 3 2 39.99 1.73 2.2547 1 -3 2 2 40.43 4.47 2.2310 1 -5 1 2 40.54 2.55 2.2250 -2 4 2 2 41.35 1.64 2.1835 0 4 2 2 41.82 1.47 2.1600 -3 3 0 2 41.86 2.34 2.1581 -2 2 3 2 42.18 1.17 2.1423 -1 -5 2 2 42.23 9.72 2.1401 0 6 0 2 42.42 13.69 2.1311 2 -4 1 2 43.06 8.99 2.1007 1 5 1 2 43.24 1.93 2.0925 -3 1 3 2 43.31 1.46 2.0889 3 3 0 2 44.82 1.30 2.0222 -1 5 2 2 44.86 2.55 2.0203 -4 0 2 2 45.00 3.40 2.0145 -4 0 1 2 45.20 1.04 2.0059 2 0 2 2 45.37 1.74 1.9988 3 -1 1 2 45.53 2.22 1.9921 -1 3 3 2 45.68 4.78 1.9861 0 6 1 2 46.18 1.73 1.9659 3 1 1 2 46.53 3.14 1.9518 2 -2 2 2 46.84 1.07 1.9394 -3 -3 3 2 47.12 3.32 1.9285 -4 -2 2 2 47.20 10.29 1.9258 -4 2 2 2 48.40 5.17 1.8806 -2 6 0 2 48.43 7.76 1.8796 2 2 2 2 48.45 1.12 1.8790 -3 5 1 2 49.09 1.47 1.8557 3 -3 1 2 49.33 11.22 1.8475 -4 0 3 2 49.48 1.22 1.8422 -2 4 3 2 49.61 3.58 1.8375 0 -6 2 2 49.70 14.36 1.8344 4 0 0 2 49.72 2.91 1.8337 1 -1 3 2 49.80 2.50 1.8309 0 -4 3 2 50.18 5.16 1.8181 2 6 0 2 50.39 3.45 1.8111 -2 -6 2 2 50.79 9.17 1.7975 1 1 3 2 50.84 2.51 1.7961 -1 7 0 2 51.29 1.15 1.7813 -1 -7 1 2 51.34 1.17 1.7798 3 3 1 2 51.57 23.40 1.7723 -2 0 4 2 52.14 6.01 1.7541 2 -4 2 2 52.31 1.88 1.7488 -2 6 2 2 52.40 1.51 1.7460 -1 7 1 2 52.40 1.45 1.7460 4 2 0 2 52.42 1.61 1.7454 1 5 2 2 52.74 3.33 1.7356 -2 -2 4 2 52.90 1.35 1.7309 1 -3 3 2 52.98 1.17 1.7285 2 -6 1 2 53.19 3.33 1.7220 -4 4 1 2 53.26 3.03 1.7200 0 6 2 2 53.44 2.08 1.7145 0 4 3 2 53.53 6.13 1.7118 -4 -4 2 2 53.66 3.61 1.7079 -4 4 2 2 54.24 1.78 1.6911 -4 -4 1 2 54.55 3.94 1.6824 -2 2 4 2 54.89 1.44 1.6728 -3 -5 3 2 55.61 3.50 1.6527 2 4 2 2 56.28 1.13 1.6346 -1 -3 4 2 56.49 1.50 1.6290 -3 -3 4 2 56.67 1.60 1.6243 3 -5 1 2 56.93 1.25 1.6174 -4 -4 3 2 57.15 4.25 1.6117 -3 5 3 2 57.41 2.32 1.6051 0 8 0 2 58.15 1.19 1.5864 4 0 1 2 58.23 1.61 1.5843 -5 1 1 2 58.27 1.39 1.5833 0 -8 1 2 58.79 2.38 1.5707 0 -2 4 2 58.94 1.72 1.5670 -4 -2 4 2 59.62 1.31 1.5507 3 -3 2 2 59.96 1.35 1.5427 2 -2 3 2 60.04 3.20 1.5409 3 5 1 2 60.10 2.17 1.5395 -4 2 4 2 60.11 1.17 1.5392 1 -7 2 2 60.80 1.08 1.5234 -5 -3 2 2 60.99 1.19 1.5193 0 2 4 2 61.20 1.65 1.5144 2 -6 2 2 61.26 1.95 1.5132 -2 4 4 2 62.18 5.34 1.4930 -2 -8 1 2 62.23 5.90 1.4919 -2 8 0 2 62.41 1.26 1.4881 3 3 2 2 62.65 4.11 1.4828 -5 -3 3 2 62.70 5.70 1.4818 -4 6 1 2 62.77 1.14 1.4802 -5 -3 1 2 62.97 1.54 1.4760 0 -8 2 2 63.16 2.47 1.4721 -5 3 3 2 63.22 1.01 1.4709 -4 -6 2 2 63.39 4.15 1.4673 -4 6 2 2 63.96 6.12 1.4556 0 6 3 2 64.24 3.76 1.4500 2 8 0 2 64.51 3.68 1.4445 2 -4 3 2 64.69 1.02 1.4409 3 7 0 2 65.39 2.09 1.4272 -5 1 4 2 65.75 1.44 1.4203 -4 6 0 2 65.87 1.02 1.4179 -3 -7 3 2 65.89 3.92 1.4175 2 6 2 2 65.90 1.58 1.4174 2 -8 1 2 66.28 1.76 1.4101 1 1 4 2 67.15 2.54 1.3941 4 4 1 2 67.35 3.59 1.3904 1 9 0 2 67.57 5.82 1.3864 1 -3 4 2 67.76 2.89 1.3828 -4 6 3 2 68.14 3.87 1.3762 -5 -3 4 2 68.30 3.27 1.3732 1 -9 1 2 68.38 1.18 1.3719 5 3 0 2 68.60 2.72 1.3681 2 4 3 2 68.67 2.24 1.3668 4 6 0 2 68.80 4.14 1.3645 -4 0 5 2 69.09 7.25 1.3596 -6 0 2 2 69.52 6.98 1.3522 4 0 2 2 69.52 5.06 1.3522 -1 -9 2 2 69.78 2.07 1.3478 -4 -2 5 2 69.89 1.93 1.3459 2 8 1 2 70.14 3.33 1.3418 -1 1 5 2 70.29 1.20 1.3392 4 -2 2 2 70.52 1.89 1.3354 -5 5 3 2 71.06 1.46 1.3266 -6 -2 2 2 71.08 1.63 1.3263 0 -8 3 2 71.30 1.28 1.3228 0 -6 4 2 71.36 2.85 1.3218 -1 -3 5 2 71.40 1.24 1.3211 3 1 3 2 71.62 1.13 1.3175 -6 2 3 2 72.38 1.09 1.3057 -4 -6 4 2 72.97 1.78 1.2966 -1 9 2 2 73.02 3.21 1.2958 2 -8 2 2 74.10 1.05 1.2795 -6 0 4 2 74.52 1.20 1.2733 4 -4 2 2 74.75 1.40 1.2700 -3 9 1 2 74.77 1.60 1.2697 2 0 4 2 74.90 1.35 1.2678 -4 8 1 2 75.03 1.08 1.2659 0 -2 5 2 75.57 4.15 1.2583 -4 -8 2 2 75.61 2.21 1.2577 -6 4 2 2 75.78 3.34 1.2552 -4 8 2 2 76.66 2.48 1.2431 -6 -4 3 2 76.90 1.48 1.2397 -5 -3 5 2 77.01 1.07 1.2382 0 8 3 2 77.26 2.05 1.2348 -4 4 5 2 77.86 1.04 1.2268 -6 4 1 2 78.16 3.84 1.2229 6 0 0 2 78.33 1.34 1.2207 4 4 2 2 78.79 4.38 1.2147 2 8 2 2 79.24 1.99 1.2089 -3 5 5 2 80.53 1.27 1.1928 6 2 0 2 81.91 1.20 1.1762 -4 -6 5 2 82.51 1.58 1.1691 1 -7 4 2 82.57 1.15 1.1683 -1 5 5 2 82.79 2.06 1.1659 -3 9 3 2 83.49 2.75 1.1578 -6 4 0 2 83.72 2.36 1.1552 3 5 3 2 84.40 1.35 1.1477 -5 -7 4 2 84.70 2.32 1.1443 -2 6 5 2 85.41 1.36 1.1366 -1 -9 4 2 86.11 1.46 1.1293 -1 -11 2 2 86.20 2.18 1.1283 6 4 0 2 86.27 1.46 1.1276 -3 -9 4 2 89.53 1.02 1.0947 -2 -8 5 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.