Kentbrooksite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern R060035 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 CELL PARAMETERS: 14.16860 14.16860 30.08470 90.00000 90.00000 120.0000 SPACE GROUP: R3m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 7.82 7.98 11.4127 1 0 1 8.86 2.23 10.0673 0 0 3 9.34 22.27 9.5492 0 1 2 12.51 46.94 7.1168 1 1 0 13.82 45.16 6.4386 1 0 4 14.74 13.82 6.0389 0 2 1 15.32 1.89 5.8114 1 1 3 15.60 51.94 5.7064 2 0 2 16.41 6.03 5.4241 0 1 5 17.69 2.63 5.0336 0 0 6 18.65 2.87 4.7746 0 2 4 19.34 1.19 4.6046 2 1 1 20.65 40.76 4.3140 2 0 5 21.69 13.77 4.1096 1 1 6 21.69 3.47 4.1089 3 0 0 21.89 3.87 4.0723 1 0 7 22.49 20.71 3.9650 2 1 4 23.45 1.86 3.8042 0 3 3 23.45 21.61 3.8042 3 0 3 24.19 4.00 3.6892 1 2 5 24.72 17.49 3.6097 0 1 8 25.09 24.43 3.5584 2 2 0 25.26 22.12 3.5346 0 2 7 26.29 43.17 3.3971 1 3 1 26.62 1.63 3.3558 0 0 9 26.63 3.36 3.3550 2 2 3 26.80 10.68 3.3344 3 1 2 27.77 35.95 3.2193 2 0 8 28.09 8.65 3.1831 0 3 6 28.09 8.19 3.1831 3 0 6 28.25 23.21 3.1656 2 1 7 29.48 17.99 3.0353 1 1 9 29.64 7.50 3.0194 0 4 2 30.09 79.40 2.9753 3 1 5 30.53 7.18 2.9332 1 2 8 30.83 20.26 2.9057 2 2 6 31.41 100.00 2.8532 4 0 4 32.26 2.20 2.7796 2 3 2 32.67 1.11 2.7451 0 4 5 33.08 14.40 2.7121 0 2 10 33.36 9.93 2.6899 4 1 0 33.49 14.83 2.6796 1 3 7 33.90 14.26 2.6483 3 2 4 34.56 25.68 2.5991 0 3 9 34.56 1.90 2.5991 3 0 9 35.09 1.81 2.5611 2 3 5 35.47 5.12 2.5343 2 1 10 35.47 2.07 2.5341 3 1 8 35.73 5.25 2.5168 0 0 12 36.62 9.37 2.4572 0 5 1 36.87 3.17 2.4414 2 2 9 36.99 1.21 2.4331 5 0 2 37.73 8.21 2.3873 0 4 8 37.98 4.55 2.3724 1 4 6 37.98 3.82 2.3723 3 3 0 38.82 10.66 2.3226 2 4 1 39.06 1.27 2.3090 3 3 3 39.18 3.55 2.3023 4 2 2 39.52 1.72 2.2830 1 0 13 39.87 3.56 2.2635 1 3 10 39.88 4.21 2.2634 2 3 8 40.92 2.55 2.2080 5 1 1 41.26 6.46 2.1905 1 5 2 41.60 6.30 2.1735 4 2 5 41.93 19.94 2.1570 4 0 10 42.15 1.56 2.1459 3 3 6 42.26 7.18 2.1407 3 1 11 42.26 2.86 2.1405 0 5 7 42.59 4.60 2.1250 0 1 14 42.60 6.38 2.1245 5 1 4 43.14 2.56 2.0988 1 4 9 43.58 1.58 2.0787 1 5 5 43.90 4.67 2.0643 3 2 10 43.90 2.24 2.0642 5 0 8 44.11 4.67 2.0548 2 2 12 44.23 5.12 2.0498 2 4 7 44.87 3.15 2.0220 4 3 1 45.08 3.42 2.0130 0 6 3 45.19 1.59 2.0085 3 4 2 45.81 16.48 1.9825 4 2 8 46.02 1.53 1.9739 5 2 0 46.12 1.04 1.9699 2 3 11 46.12 1.40 1.9698 5 1 7 46.42 2.03 1.9576 1 2 14 46.43 1.94 1.9572 4 3 4 46.94 2.38 1.9374 1 1 15 46.94 5.25 1.9371 3 3 9 46.95 1.69 1.9370 2 5 3 47.35 1.89 1.9215 1 3 13 47.86 3.21 1.9021 0 6 6 47.86 8.12 1.9021 6 0 6 48.56 3.49 1.8762 1 6 1 48.85 1.87 1.8659 1 0 16 48.86 1.72 1.8654 6 1 2 49.45 5.64 1.8446 2 4 10 49.64 2.83 1.8378 1 4 12 49.64 4.01 1.8378 4 1 12 49.65 6.70 1.8376 2 5 6 49.65 2.50 1.8376 5 2 6 49.74 3.47 1.8342 4 3 7 50.04 1.57 1.8241 1 6 4 50.51 1.57 1.8080 0 3 15 50.61 2.03 1.8049 0 2 16 50.90 1.48 1.7951 3 2 13 50.91 1.98 1.7949 6 1 5 51.19 4.93 1.7856 5 1 10 51.20 1.26 1.7855 3 4 8 51.39 20.73 1.7792 4 4 0 51.48 6.88 1.7763 4 2 11 51.76 9.78 1.7673 0 4 14 52.06 4.27 1.7580 3 5 1 52.23 3.06 1.7524 2 2 15 53.08 1.50 1.7263 3 3 12 53.45 3.58 1.7152 2 3 14 53.46 2.33 1.7149 7 0 4 53.74 2.20 1.7067 6 2 1 54.02 7.62 1.6986 2 6 2 54.29 2.13 1.6906 0 7 5 54.74 1.07 1.6779 0 0 18 54.75 11.92 1.6775 4 4 6 55.12 1.48 1.6672 6 2 4 55.65 1.33 1.6525 1 3 16 55.92 4.35 1.6450 2 4 13 55.93 7.03 1.6448 2 6 5 56.37 4.17 1.6331 1 1 18 57.17 1.27 1.6119 4 1 15 57.18 2.45 1.6117 1 7 3 57.26 11.12 1.6097 4 0 16 57.80 4.74 1.5959 1 6 10 57.97 1.54 1.5915 6 0 12 58.07 3.67 1.5892 6 2 7 58.32 3.72 1.5828 4 2 14 58.85 8.18 1.5700 3 2 16 58.86 1.01 1.5697 4 5 2 59.55 2.70 1.5532 5 2 12 59.55 3.55 1.5530 6 3 0 59.89 5.53 1.5451 1 5 14 59.90 3.84 1.5449 5 4 4 60.41 3.50 1.5329 8 0 2 60.66 2.97 1.5272 4 3 13 61.08 1.76 1.5176 2 2 18 61.44 1.45 1.5097 0 8 4 61.94 3.27 1.4987 0 5 16 61.95 1.87 1.4985 7 2 2 62.45 2.58 1.4876 6 2 10 62.62 1.11 1.4840 6 3 6 62.70 1.12 1.4823 0 7 11 62.70 5.53 1.4823 5 3 11 62.95 1.44 1.4770 3 4 14 62.96 1.25 1.4769 2 7 4 63.45 4.34 1.4666 2 4 16 63.96 1.85 1.4561 4 5 8 64.12 2.23 1.4528 4 4 12 64.69 1.11 1.4414 1 3 19 64.86 1.51 1.4380 6 0 15 64.93 2.21 1.4365 1 2 20 65.44 2.73 1.4266 8 0 8 65.61 3.39 1.4234 5 5 0 66.18 2.83 1.4124 4 6 1 66.33 2.49 1.4095 2 5 15 66.43 2.88 1.4078 6 4 2 66.67 4.13 1.4033 1 8 5 67.64 1.84 1.3854 7 3 1 68.36 6.04 1.3725 0 8 10 68.52 8.36 1.3697 5 5 6 68.60 1.67 1.3683 8 1 7 69.23 3.61 1.3574 0 3 21 69.31 4.98 1.3560 0 4 20 69.80 1.39 1.3477 2 7 10 69.96 3.20 1.3450 8 2 0 70.04 2.74 1.3437 4 6 7 70.26 1.37 1.3400 0 2 22 70.27 1.90 1.3398 2 6 14 70.50 1.30 1.3359 0 5 19 70.66 1.88 1.3334 2 2 21 70.68 3.38 1.3331 8 2 3 72.78 3.17 1.2995 0 6 18 72.80 1.30 1.2994 2 8 6 73.58 1.57 1.2875 9 1 2 74.89 2.29 1.2680 4 7 3 74.96 1.09 1.2671 6 2 16 75.57 1.68 1.2584 0 0 24 76.34 1.15 1.2475 1 5 20 76.97 1.72 1.2390 5 5 12 78.33 1.76 1.2207 4 4 18 78.88 1.35 1.2136 9 2 1 79.11 1.48 1.2107 2 9 2 79.33 2.57 1.2078 0 10 5 79.77 1.19 1.2023 1 0 25 80.92 1.81 1.1880 1 9 10 81.13 1.69 1.1855 0 2 25 81.74 1.13 1.1782 0 6 21 82.71 1.12 1.1667 5 1 22 82.94 1.12 1.1641 6 2 19 83.09 1.91 1.1624 2 5 21 84.74 1.16 1.1439 4 2 23 84.98 1.73 1.1413 10 0 10 85.20 1.27 1.1388 8 3 11 86.33 2.09 1.1269 9 2 10 87.14 3.24 1.1184 8 2 15 87.14 1.49 1.1184 2 8 15 87.14 1.49 1.1184 2 8 15 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.