Nacrite Gruner J Zeitschrift fur Kristallographie 85 (1933) 345-354 The crystal structure of Nacrite and a comparison of certain optical properties of the caolin group with its structures _cod_database_code 1011080 _database_code_amcsd 0017977 CELL PARAMETERS: 5.1600 8.9300 28.6600 90.000 91.720 90.000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 Cell Volume: 1320.023 Density (g/cm3): 2.557 MAX. ABS. INTENSITY / VOLUME**2: 8.438895137 RIR: 1.075 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 12.36 100.00 7.1618 0 0 4 1 19.88 4.97 4.4663 1 1 0 2 19.88 12.15 4.4650 0 2 0 2 20.04 20.20 4.4305 -1 1 1 2 20.13 32.12 4.4117 0 2 1 2 20.20 6.38 4.3956 1 1 1 2 20.68 2.22 4.2956 -1 1 2 2 20.99 2.14 4.2326 1 1 2 2 21.75 22.83 4.0866 -1 1 3 2 21.98 10.32 4.0447 0 2 3 2 22.19 9.03 4.0059 1 1 3 2 23.20 9.50 3.8347 -1 1 4 2 23.48 2.12 3.7890 0 2 4 2 23.75 9.16 3.7463 1 1 4 2 24.86 55.31 3.5809 0 0 8 1 24.96 4.37 3.5677 -1 1 5 2 25.29 1.04 3.5218 0 2 5 2 25.61 22.22 3.4789 1 1 5 2 26.98 1.10 3.3048 -1 1 6 2 29.21 9.95 3.0571 -1 1 7 2 29.61 4.30 3.0169 0 2 7 2 30.00 3.67 2.9790 1 1 7 2 31.62 1.91 2.8299 -1 1 8 2 32.04 3.83 2.7935 0 2 8 2 32.45 1.47 2.7590 1 1 8 2 34.16 3.32 2.6245 -1 1 9 2 34.61 5.73 2.5918 0 2 9 2 34.79 3.03 2.5788 2 0 0 1 34.80 5.79 2.5781 1 3 0 2 35.28 1.49 2.5440 -1 3 2 2 35.47 1.94 2.5307 1 3 2 2 35.56 1.08 2.5248 2 0 2 1 36.68 16.57 2.4499 -2 0 4 1 36.88 33.48 2.4374 -1 3 4 2 37.24 34.03 2.4142 1 3 4 2 37.42 17.02 2.4034 2 0 4 1 37.68 10.12 2.3873 0 0 12 1 39.20 4.18 2.2980 -2 0 6 1 39.47 8.59 2.2829 -1 3 6 2 39.99 8.82 2.2544 1 3 6 2 40.08 3.18 2.2496 0 2 11 2 40.24 4.53 2.2411 2 0 6 1 40.43 2.64 2.2309 -2 2 1 2 40.55 1.58 2.2247 1 1 11 2 41.54 2.00 2.1739 0 4 3 2 42.41 1.44 2.1313 0 4 4 2 42.58 3.54 2.1231 -2 0 8 1 42.92 6.02 2.1073 -1 3 8 2 42.96 1.16 2.1052 0 2 12 2 43.51 1.67 2.0802 0 4 5 2 43.56 4.18 2.0775 1 3 8 2 43.88 1.70 2.0635 2 0 8 1 46.42 1.88 1.9561 1 1 13 2 46.68 4.84 1.9459 -2 0 10 1 46.85 3.13 1.9392 2 2 7 2 47.07 9.52 1.9308 -1 3 10 2 47.82 9.27 1.9022 1 3 10 2 48.18 4.55 1.8887 2 0 10 1 49.23 2.64 1.8509 -2 2 9 2 51.01 2.13 1.7904 0 0 16 1 51.37 1.04 1.7787 -2 0 12 1 51.55 1.75 1.7727 -1 1 15 2 51.80 2.25 1.7649 -1 3 12 2 52.64 2.64 1.7387 1 3 12 2 53.05 1.41 1.7262 2 0 12 1 54.11 1.69 1.6950 0 4 11 2 54.34 1.70 1.6882 -3 1 1 2 54.34 1.14 1.6882 3 1 0 2 54.55 1.38 1.6824 3 1 1 2 55.17 1.30 1.6647 -1 5 3 2 55.47 1.55 1.6565 2 4 3 2 56.43 1.22 1.6306 0 4 12 2 56.54 1.90 1.6278 -2 4 5 2 56.57 2.80 1.6269 -2 0 14 1 57.04 1.81 1.6146 1 5 5 2 57.04 5.45 1.6146 -1 3 14 2 57.96 5.05 1.5912 1 3 14 2 58.41 2.47 1.5800 2 0 14 1 58.89 1.61 1.5683 0 4 13 2 59.00 1.10 1.5656 -1 5 7 2 62.23 3.28 1.4919 -2 0 16 1 62.37 18.46 1.4888 3 3 0 2 62.39 9.35 1.4883 0 6 0 2 62.74 6.75 1.4810 -1 3 16 2 63.49 5.18 1.4652 -3 3 4 2 63.73 7.00 1.4604 1 3 16 2 63.88 3.43 1.4572 0 6 4 2 64.21 3.56 1.4505 2 0 16 1 64.23 2.04 1.4501 3 3 4 2 65.09 1.31 1.4331 2 2 15 2 65.12 2.25 1.4324 0 0 20 1 67.51 1.12 1.3875 -3 3 8 2 68.24 1.40 1.3744 0 6 8 2 68.32 1.01 1.3729 -2 0 18 1 68.86 1.93 1.3634 -1 3 18 2 68.93 1.45 1.3623 -2 2 17 2 68.94 1.59 1.3622 3 3 8 2 69.93 1.74 1.3453 1 3 18 2 73.44 1.35 1.2894 4 0 0 1 73.46 2.51 1.2891 2 6 0 2 74.36 2.94 1.2757 -4 0 4 1 74.61 5.84 1.2720 -2 6 4 2 74.86 2.05 1.2684 -2 0 20 1 75.07 5.35 1.2654 2 6 4 2 75.28 2.47 1.2624 4 0 4 1 75.44 3.76 1.2601 -1 3 20 2 76.58 3.18 1.2442 1 3 20 2 77.14 1.43 1.2365 2 0 20 1 80.46 1.71 1.1936 0 0 24 1 81.40 1.25 1.1822 -2 6 10 2 82.52 1.25 1.1690 2 6 10 2 84.97 1.40 1.1414 -2 6 12 2 86.30 1.50 1.1272 2 6 12 2 89.18 1.09 1.0981 -2 6 14 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.