Cordierite Armbruster T American Mineralogist 71 (1986) 746-757 Role of Na in the structure of low-cordierite: A single-crystal X-ray study Sample: from a pelitic schist, south-central Maine, USA (Ferry) _database_code_amcsd 0001019 CELL PARAMETERS: 17.0560 9.7830 9.3350 90.000 90.000 90.000 SPACE GROUP: Cccm X-RAY WAVELENGTH: 1.541838 Cell Volume: 1557.627 Density (g/cm3): 2.626 MAX. ABS. INTENSITY / VOLUME**2: 6.579301698 RIR: 0.816 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.37 57.42 8.5280 2 0 0 2 10.42 100.00 8.4861 1 1 0 4 18.05 13.34 4.9155 3 1 0 4 18.14 4.49 4.8915 0 2 0 2 19.01 13.48 4.6675 0 0 2 2 20.83 2.95 4.2640 4 0 0 2 20.94 1.61 4.2431 2 2 0 4 21.71 12.16 4.0944 2 0 2 4 21.73 76.13 4.0897 1 1 2 8 26.33 70.54 3.3847 3 1 2 8 26.39 44.89 3.3768 0 2 2 4 27.70 1.28 3.2210 5 1 0 4 27.76 2.95 3.2142 4 2 0 4 28.35 26.46 3.1481 4 0 2 4 28.43 73.98 3.1397 2 2 2 8 29.33 52.14 3.0448 5 1 1 8 29.39 43.32 3.0391 4 2 1 8 29.48 51.81 3.0296 1 3 1 8 31.47 3.59 2.8427 6 0 0 2 31.63 2.78 2.8287 3 3 0 4 33.81 16.65 2.6510 5 1 2 8 33.86 14.79 2.6472 4 2 2 8 33.94 7.81 2.6410 1 3 2 8 36.56 9.22 2.4578 6 2 0 4 36.75 6.34 2.4457 0 4 0 2 38.28 1.07 2.3510 2 4 0 4 38.58 21.55 2.3338 0 0 4 2 39.31 1.67 2.2920 7 1 1 8 39.43 1.34 2.2855 5 3 1 8 40.07 1.34 2.2502 1 1 4 8 40.30 1.99 2.2379 5 1 3 8 40.34 1.46 2.2357 4 2 3 8 40.41 1.48 2.2319 1 3 3 8 41.52 8.74 2.1747 6 2 2 8 41.69 2.93 2.1664 0 4 2 4 42.88 4.23 2.1092 7 1 2 8 42.90 1.57 2.1082 3 1 4 8 42.99 6.11 2.1041 5 3 2 8 43.08 7.78 2.0997 2 4 2 8 44.30 1.52 2.0449 2 2 4 8 46.46 1.42 1.9544 8 2 0 4 46.53 3.11 1.9519 7 3 0 4 46.73 1.32 1.9439 1 5 0 4 46.85 2.99 1.9393 8 0 2 4 47.05 2.63 1.9314 4 4 2 8 47.53 2.48 1.9129 8 2 1 8 48.25 1.74 1.8862 1 3 4 8 48.35 5.11 1.8826 7 1 3 8 48.45 8.12 1.8789 5 3 3 8 48.53 8.30 1.8758 2 4 3 8 48.96 4.93 1.8605 9 1 0 4 49.14 5.26 1.8540 6 4 0 4 49.25 5.51 1.8501 3 5 0 4 49.99 1.54 1.8246 9 1 1 8 50.17 4.15 1.8185 6 4 1 8 50.28 2.97 1.8148 3 5 1 8 50.60 6.03 1.8038 6 0 4 4 50.71 11.38 1.8002 3 3 4 8 52.98 1.61 1.7283 9 1 2 8 53.16 1.93 1.7230 6 4 2 8 53.26 1.36 1.7199 3 5 2 8 53.74 5.98 1.7056 10 0 0 2 54.03 7.31 1.6972 5 5 0 4 54.20 28.67 1.6924 6 2 4 8 54.33 15.74 1.6884 0 4 4 4 55.31 1.73 1.6609 7 1 4 8 55.52 2.23 1.6550 8 2 3 8 55.76 1.20 1.6486 1 5 3 8 56.13 1.26 1.6385 9 3 0 4 56.43 1.18 1.6305 0 6 0 2 57.05 1.11 1.6144 4 2 5 8 57.20 3.32 1.6105 10 2 0 4 57.33 1.91 1.6071 8 4 0 4 57.55 2.43 1.6015 2 6 0 4 57.73 4.72 1.5969 9 1 3 8 57.90 7.91 1.5927 6 4 3 8 58.00 4.86 1.5902 3 5 3 8 58.82 1.77 1.5698 4 4 4 8 59.41 3.80 1.5558 0 0 6 2 59.82 2.92 1.5460 9 3 2 8 60.11 2.34 1.5393 0 6 2 4 60.85 1.92 1.5224 10 2 2 8 61.71 1.22 1.5031 4 6 1 8 61.93 3.04 1.4984 8 2 4 8 61.98 4.46 1.4972 7 3 4 8 62.15 2.68 1.4936 1 5 4 8 62.63 4.57 1.4833 3 1 6 8 62.66 2.20 1.4826 0 2 6 4 63.71 3.06 1.4607 2 2 6 8 63.98 2.63 1.4551 11 1 2 8 64.23 6.53 1.4501 7 5 2 8 64.34 2.69 1.4478 4 6 2 8 65.56 1.38 1.4240 2 6 3 8 66.06 2.91 1.4144 6 6 0 4 66.77 2.81 1.4010 5 1 6 8 66.80 3.07 1.4004 4 2 6 8 66.85 1.99 1.3995 1 3 6 8 68.34 1.06 1.3726 5 5 4 8 68.78 1.98 1.3649 12 2 0 4 68.99 1.70 1.3613 9 5 0 4 69.08 7.85 1.3597 12 0 2 4 69.23 2.13 1.3572 3 7 0 4 69.44 12.66 1.3536 6 6 2 8 69.62 2.57 1.3505 12 2 1 8 69.82 3.10 1.3470 9 5 1 8 70.06 3.09 1.3430 3 7 1 8 71.13 5.89 1.3255 10 2 4 8 71.24 3.93 1.3236 8 4 4 8 71.44 3.68 1.3205 2 6 4 8 71.60 1.48 1.3179 9 1 5 8 71.75 1.98 1.3155 6 4 5 8 71.81 4.12 1.3146 6 2 6 8 71.84 1.30 1.3142 3 5 5 8 71.93 1.61 1.3127 0 4 6 4 72.10 1.18 1.3100 12 2 2 8 72.54 1.22 1.3032 3 7 2 8 72.76 1.69 1.2997 7 1 6 8 72.84 1.64 1.2985 5 3 6 8 72.91 1.52 1.2974 2 4 6 8 74.27 4.02 1.2770 11 3 3 8 74.34 1.26 1.2760 10 4 3 8 74.66 3.04 1.2713 1 7 3 8 75.67 1.49 1.2568 8 0 6 4 75.83 1.65 1.2546 4 4 6 8 76.36 1.44 1.2471 9 5 3 8 76.59 1.02 1.2440 3 7 3 8 77.46 3.38 1.2321 5 1 7 8 77.49 2.67 1.2318 4 2 7 8 77.54 3.20 1.2311 1 3 7 8 79.95 3.80 1.1999 10 4 4 8 80.26 2.01 1.1961 1 7 4 8 80.89 4.52 1.1884 12 4 2 8 81.34 2.27 1.1829 0 8 2 4 81.74 3.66 1.1782 12 2 4 8 81.93 2.10 1.1759 9 5 4 8 82.16 3.21 1.1732 3 7 4 8 82.70 6.07 1.1669 0 0 8 2 84.55 1.11 1.1460 14 2 2 8 85.48 1.09 1.1359 13 1 4 8 86.20 1.51 1.1282 9 3 6 8 86.45 1.58 1.1256 0 6 6 4 88.99 1.21 1.0999 9 5 5 8 89.88 1.02 1.0914 11 1 6 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.