Kentbrooksite Johnsen O, Grice J D, Gault R A European Journal of Mineralogy 10 (1998) 207-219 Kentbrooksite from the Kangerdlugssuaq intrusion, East Greenland, a new Mn-REE-Nb-F end-member in a series within the eudialyte group: Description and crystal structure Locality: Kangerdlugssuaq intrusion, East Greenland _database_code_amcsd 0006713 CELL PARAMETERS: 14.1686 14.1686 30.0847 90.000 90.000 120.000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 5230.343 Density (g/cm3): 2.927 MAX. ABS. INTENSITY / VOLUME**2: 7.229527204 RIR: 0.804 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.78 7.98 11.3617 1 0 1 3 8.82 2.23 10.0282 0 0 3 1 9.30 22.27 9.5082 0 1 2 3 12.49 46.94 7.0843 1 1 0 6 13.81 45.16 6.4124 1 0 4 3 14.74 13.82 6.0115 0 2 1 3 15.31 1.89 5.7861 1 1 3 6 15.60 51.94 5.6808 2 0 2 3 16.41 6.03 5.4024 0 1 5 3 17.69 2.63 5.0141 0 0 6 1 18.66 2.87 4.7541 0 2 4 3 19.37 1.19 4.5836 2 1 1 6 20.68 40.76 4.2958 2 0 5 3 21.71 13.77 4.0927 1 1 6 6 21.73 3.47 4.0901 3 0 0 3 21.91 3.87 4.0562 1 0 7 3 22.52 20.71 3.9476 2 1 4 6 23.49 1.86 3.7872 0 3 3 3 23.49 21.61 3.7872 3 0 3 3 24.23 4.00 3.6732 1 2 5 6 24.76 17.49 3.5955 0 1 8 3 25.14 24.43 3.5422 2 2 0 6 25.30 22.12 3.5200 0 2 7 3 26.36 43.17 3.3816 1 3 1 6 26.67 1.63 3.3427 0 0 9 1 26.69 3.36 3.3399 2 2 3 6 26.86 10.68 3.3193 3 1 2 6 27.83 35.95 3.2062 2 0 8 3 28.16 8.65 3.1694 0 3 6 3 28.16 8.19 3.1694 3 0 6 3 28.31 23.21 3.1524 2 1 7 6 29.55 17.99 3.0231 1 1 9 6 29.72 7.50 3.0057 0 4 2 3 30.17 79.40 2.9622 3 1 5 6 30.61 7.18 2.9210 1 2 8 6 30.91 20.26 2.8931 2 2 6 6 31.50 100.00 2.8404 4 0 4 3 32.35 2.20 2.7670 2 3 2 6 32.77 1.11 2.7329 0 4 5 3 33.17 14.40 2.7012 0 2 10 3 33.47 9.93 2.6776 4 1 0 6 33.59 14.83 2.6680 1 3 7 6 34.00 14.26 2.6364 3 2 4 6 34.66 25.68 2.5883 0 3 9 3 34.66 1.90 2.5883 3 0 9 3 35.20 1.81 2.5498 2 3 5 6 35.57 5.12 2.5239 2 1 10 6 35.58 2.07 2.5233 3 1 8 6 35.82 5.25 2.5071 0 0 12 1 36.74 9.37 2.4459 0 5 1 3 36.98 3.17 2.4311 2 2 9 6 37.12 1.21 2.4221 5 0 2 3 37.85 8.21 2.3770 0 4 8 3 38.10 4.55 2.3619 1 4 6 6 38.11 3.82 2.3614 3 3 0 6 38.96 10.66 2.3120 2 4 1 6 39.19 1.27 2.2986 3 3 3 6 39.31 3.55 2.2918 4 2 2 6 39.63 1.72 2.2741 1 0 13 3 40.00 3.56 2.2540 1 3 10 6 40.01 4.21 2.2536 2 3 8 6 41.07 2.55 2.1979 5 1 1 6 41.41 6.46 2.1805 1 5 2 6 41.74 6.30 2.1638 4 2 5 6 42.07 19.94 2.1479 4 0 10 3 42.31 1.56 2.1364 3 3 6 6 42.40 7.18 2.1319 3 1 11 6 42.41 2.86 2.1311 0 5 7 3 42.72 4.60 2.1167 0 1 14 3 42.76 6.38 2.1149 5 1 4 6 43.29 2.56 2.0898 1 4 9 6 43.74 1.58 2.0694 1 5 5 6 44.05 4.67 2.0555 3 2 10 6 44.06 2.24 2.0552 5 0 8 3 44.26 4.67 2.0464 2 2 12 6 44.39 5.12 2.0408 2 4 7 6 45.04 3.15 2.0127 4 3 1 6 45.25 3.42 2.0038 0 6 3 3 45.36 1.59 1.9993 3 4 2 6 45.98 16.48 1.9738 4 2 8 6 46.20 1.53 1.9648 5 2 0 6 46.28 1.04 1.9616 2 3 11 6 46.30 1.40 1.9610 5 1 7 6 46.58 2.03 1.9498 1 2 14 6 46.62 1.94 1.9484 4 3 4 6 47.09 2.38 1.9298 1 1 15 6 47.12 5.25 1.9287 3 3 9 6 47.13 1.69 1.9282 2 5 3 6 47.51 1.89 1.9137 1 3 13 6 48.05 3.21 1.8936 0 6 6 3 48.05 8.12 1.8936 6 0 6 3 48.76 3.49 1.8676 1 6 1 6 49.01 1.87 1.8586 1 0 16 3 49.06 1.72 1.8569 6 1 2 6 49.64 5.64 1.8366 2 4 10 6 49.83 2.83 1.8301 1 4 12 6 49.83 4.01 1.8301 4 1 12 6 49.85 6.70 1.8294 2 5 6 6 49.85 2.50 1.8294 5 2 6 6 49.94 3.47 1.8261 4 3 7 6 50.24 1.57 1.8159 1 6 4 6 50.69 1.57 1.8008 0 3 15 3 50.79 2.03 1.7978 0 2 16 3 51.09 1.48 1.7877 3 2 13 6 51.12 1.98 1.7868 6 1 5 6 51.40 4.93 1.7778 5 1 10 6 51.40 1.26 1.7776 3 4 8 6 51.61 20.73 1.7711 4 4 0 6 51.68 6.88 1.7687 4 2 11 6 51.95 9.78 1.7600 0 4 14 3 52.28 4.27 1.7499 3 5 1 6 52.43 3.06 1.7453 2 2 15 6 53.29 1.50 1.7190 3 3 12 6 53.66 3.58 1.7081 2 3 14 6 53.69 2.33 1.7072 7 0 4 3 53.97 2.20 1.6989 6 2 1 6 54.25 7.62 1.6908 2 6 2 6 54.53 2.13 1.6829 0 7 5 3 54.94 1.07 1.6714 0 0 18 1 54.99 11.92 1.6700 4 4 6 6 55.36 1.48 1.6596 6 2 4 6 55.86 1.33 1.6458 1 3 16 6 56.15 4.35 1.6380 2 4 13 6 56.18 7.03 1.6374 2 6 5 6 56.58 4.17 1.6267 1 1 18 6 57.40 1.27 1.6053 4 1 15 6 57.44 2.45 1.6043 1 7 3 6 57.49 11.12 1.6031 4 0 16 3 58.05 4.74 1.5889 1 6 10 6 58.22 1.54 1.5847 6 0 12 3 58.32 3.67 1.5821 6 2 7 6 58.56 3.72 1.5762 4 2 14 6 59.08 8.18 1.5636 3 2 16 6 59.12 1.01 1.5626 4 5 2 6 59.80 2.70 1.5465 5 2 12 6 59.83 3.55 1.5459 6 3 0 6 60.14 5.53 1.5386 1 5 14 6 60.17 3.84 1.5379 5 4 4 6 60.69 3.50 1.5259 8 0 2 3 60.92 2.97 1.5206 4 3 13 6 61.33 1.76 1.5116 2 2 18 6 61.72 1.45 1.5029 0 8 4 3 62.20 3.27 1.4926 0 5 16 3 62.24 1.87 1.4917 7 2 2 6 62.73 2.58 1.4811 6 2 10 6 62.91 1.11 1.4773 6 3 6 6 62.98 1.12 1.4758 0 7 11 3 62.98 5.53 1.4758 5 3 11 6 63.22 1.44 1.4707 3 4 14 6 63.25 1.25 1.4701 2 7 4 6 63.72 4.34 1.4605 2 4 16 6 64.25 1.85 1.4496 4 5 8 6 64.41 2.23 1.4465 4 4 12 6 64.96 1.11 1.4356 1 3 19 6 65.15 1.51 1.4319 6 0 15 3 65.20 2.21 1.4309 1 2 20 6 65.75 2.73 1.4202 8 0 8 3 65.93 3.39 1.4169 5 5 0 6 66.50 2.83 1.4060 4 6 1 6 66.63 2.49 1.4036 2 5 15 6 66.75 2.88 1.4014 6 4 2 6 66.99 4.13 1.3969 1 8 5 6 67.98 1.84 1.3791 7 3 1 6 68.69 6.04 1.3665 0 8 10 3 68.86 8.36 1.3635 5 5 6 6 68.94 1.67 1.3621 8 1 7 6 69.53 3.61 1.3521 0 3 21 3 69.61 4.98 1.3506 0 4 20 3 70.14 1.39 1.3417 2 7 10 6 70.31 3.20 1.3388 8 2 0 6 70.39 2.74 1.3376 4 6 7 6 70.56 1.37 1.3347 0 2 22 3 70.61 1.90 1.3340 2 6 14 6 70.82 1.30 1.3305 0 5 19 3 70.97 1.88 1.3281 2 2 21 6 71.03 3.38 1.3270 8 2 3 6 73.12 3.17 1.2941 0 6 18 3 73.17 1.30 1.2935 2 8 6 6 73.96 1.57 1.2816 9 1 2 6 75.29 2.29 1.2623 4 7 3 6 75.33 1.09 1.2617 6 2 16 6 75.90 1.68 1.2535 0 0 24 1 76.71 1.15 1.2424 1 5 20 6 77.36 1.72 1.2335 5 5 12 6 78.72 1.76 1.2156 4 4 18 6 79.31 1.35 1.2081 9 2 1 6 79.54 1.48 1.2051 2 9 2 6 79.76 2.57 1.2023 0 10 5 3 80.14 1.19 1.1976 1 0 25 3 81.36 1.81 1.1827 1 9 10 6 81.51 1.69 1.1809 0 2 25 3 82.15 1.13 1.1733 0 6 21 3 83.13 1.12 1.1620 5 1 22 6 83.37 1.12 1.1592 6 2 19 6 83.51 1.91 1.1576 2 5 21 6 85.17 1.16 1.1393 4 2 23 6 85.46 1.73 1.1362 10 0 10 3 85.68 1.27 1.1338 8 3 11 6 86.82 2.09 1.1218 9 2 10 6 87.63 3.24 1.1135 8 2 15 6 87.63 1.49 1.1135 2 8 15 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.