Kentbrooksite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R110208 Johnsen O, Grice J D The Canadian Mineralogist 37 (1999) 865-891 The crystal chemistry of the eudialyte group Locality: Mont Saint-Hilaire, Rouville County, Quebec, Canada Sample: #4 Note: additional sites with low but unreported occupancies excluded _database_code_amcsd 0005610 CELL PARAMETERS: 14.2700 14.2700 30.1540 90.000 90.000 120.000 SPACE GROUP: R3m ATOM X Y Z OCCUPANCY ISO(B) Ca 0.40710 0.07430 0.83280 0.620 1.184 Mn 0.40710 0.07430 0.83280 0.310 1.184 Y 0.40710 0.07430 0.83280 0.020 1.184 Ce 0.40710 0.07430 0.83280 0.030 1.184 La 0.40710 0.07430 0.83280 0.020 1.184 Mn 0.18310 0.81690 0.83090 0.520 1.184 Fe 0.18310 0.81690 0.83090 0.180 1.184 Fe 0.14590 0.85410 0.83450 0.170 2.369 Nb 0.00000 0.00000 0.12750 0.670 1.184 Si 0.00000 0.00000 0.12750 0.330 1.184 Si 0.00000 0.00000 0.92200 0.350 0.790 Si 0.00000 0.00000 0.87750 0.650 2.369 Na 0.77580 0.22420 0.98700 0.490 2.763 Na 0.73780 0.26220 0.00740 0.490 2.763 Na 0.55510 0.44490 0.67960 0.930 1.974 Na 0.89650 0.10350 0.78610 0.970 5.922 Ce 0.89650 0.10350 0.78610 0.020 5.922 La 0.89650 0.10350 0.78610 0.010 5.922 Na 0.43430 0.56570 0.87970 0.770 1.184 Ce 0.43430 0.56570 0.87970 0.050 1.184 La 0.43430 0.56570 0.87970 0.030 1.184 Nd 0.43430 0.56570 0.87970 0.030 1.184 K 0.43430 0.56570 0.87970 0.080 1.184 Sr 0.43430 0.56570 0.87970 0.040 1.184 Na 0.26140 0.73860 0.68390 0.800 5.132 Zr 0.50130 0.49860 0.00000 0.920 0.790 Ti 0.50130 0.49860 0.00000 0.040 0.790 Nb 0.50130 0.49860 0.00000 0.040 0.790 Si 0.73720 0.26280 0.75160 1.000 1.184 Si 0.59640 0.40360 0.91370 1.000 1.184 Si 0.46010 0.53990 0.75610 1.000 0.790 Si -0.12450 0.12450 0.90890 1.000 0.790 Si 0.05510 0.32490 0.73660 1.000 0.790 Si 0.27790 -0.06240 0.93020 1.000 0.790 O 0.60500 0.39500 0.75560 1.000 1.974 O 0.77760 0.22240 0.79210 1.000 2.763 O 0.76440 0.23560 0.70430 1.000 2.763 O 0.72860 0.27140 0.91020 1.000 2.369 O 0.55230 0.44770 0.87520 1.000 2.763 O 0.90520 0.09480 0.63010 1.000 2.369 O 0.38820 -0.04060 0.72570 1.000 1.184 O 0.48550 0.51450 0.80360 1.000 1.184 O 0.39500 0.60500 0.75520 1.000 1.974 O 0.28470 0.05480 0.94020 1.000 1.974 O 0.84540 0.15460 0.86150 1.000 1.579 O 0.94010 0.05990 0.90450 1.000 2.763 O 0.69480 0.10030 0.62710 1.000 1.579 O 0.29390 0.92430 0.87820 1.000 1.184 O 0.15710 0.84290 0.94670 1.000 1.184 O 0.25450 0.22420 0.70650 1.000 1.579 O 0.03870 0.29910 0.78840 1.000 1.184 O 0.17840 0.82160 0.72030 1.000 1.184 O 0.27000 0.73000 0.82950 0.840 1.579 O 0.00000 0.00000 0.97510 0.600 1.579 Cl 0.00000 0.00000 0.26880 0.080 2.369 OH 0.00000 0.00000 0.26880 0.250 2.369 Cl 0.00000 0.00000 0.23820 0.080 2.369 OH 0.00000 0.00000 0.23820 0.250 2.369 Cl 0.95750 0.91490 0.25360 0.030 2.369 OH 0.95750 0.91490 0.25360 0.080 2.369 Cl 0.00000 0.00000 0.80050 0.050 2.369 OH 0.00000 0.00000 0.80050 0.280 2.369 Cl 0.00000 0.00000 0.73970 0.050 2.369 OH 0.00000 0.00000 0.73970 0.280 2.369 Cl 0.00000 0.00000 0.70520 0.050 2.369 OH 0.00000 0.00000 0.70520 0.280 2.369 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 11 +/- 11 +/- 27 MAX. ABS. INTENSITY / VOLUME**2: 7.114442661 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 7.73 28.56 11.4351 1 0 1 8.80 9.33 10.0513 0 0 3 9.25 20.28 9.5577 0 1 2 12.41 54.52 7.1350 1 1 0 13.76 36.32 6.4356 1 0 4 14.63 19.01 6.0533 0 2 1 15.23 1.43 5.8182 1 1 3 15.50 40.33 5.7175 2 0 2 16.35 8.89 5.4199 0 1 5 17.65 1.73 5.0257 0 0 6 18.57 1.57 4.7789 0 2 4 19.90 1.84 4.4617 1 2 2 20.58 43.61 4.3159 2 0 5 21.57 6.78 4.1194 3 0 0 21.63 16.73 4.1087 1 1 6 21.85 3.08 4.0677 1 0 7 22.39 29.87 3.9705 2 1 4 23.34 26.56 3.8117 3 0 3 24.10 3.89 3.6929 1 2 5 24.69 8.77 3.6053 0 1 8 24.96 21.77 3.5675 2 2 0 25.20 27.73 3.5338 0 2 7 26.17 39.18 3.4056 1 3 1 26.51 3.85 3.3620 2 2 3 26.61 2.19 3.3504 0 0 9 26.67 9.10 3.3423 3 1 2 27.72 38.24 3.2178 2 0 8 28.01 5.60 3.1859 0 3 6 28.01 8.41 3.1859 3 0 6 28.18 30.82 3.1667 2 1 7 29.45 25.23 3.0327 1 1 9 29.51 8.64 3.0267 0 4 2 29.99 90.21 2.9799 3 1 5 30.47 6.21 2.9333 1 2 8 30.73 17.46 2.9091 2 2 6 31.29 100.00 2.8588 4 0 4 31.70 1.20 2.8227 3 2 1 32.12 3.66 2.7863 2 3 2 32.56 2.70 2.7497 0 4 5 33.06 12.23 2.7099 0 2 10 33.22 6.85 2.6968 4 1 0 33.41 14.76 2.6821 1 3 7 33.48 1.30 2.6762 0 1 11 33.78 16.94 2.6537 3 2 4 34.43 2.06 2.6047 1 4 3 34.43 1.77 2.6047 4 1 3 34.51 25.02 2.5993 0 3 9 34.51 1.92 2.5993 3 0 9 34.97 1.38 2.5658 2 3 5 35.40 5.96 2.5359 3 1 8 35.43 6.80 2.5334 2 1 10 35.73 5.18 2.5128 0 0 12 36.47 9.70 2.4634 0 5 1 36.80 5.75 2.4423 2 2 9 37.64 11.05 2.3894 0 4 8 37.83 4.61 2.3783 3 3 0 37.86 5.50 2.3763 1 4 6 37.99 1.69 2.3683 3 2 7 38.67 13.90 2.3285 2 4 1 38.91 2.49 2.3144 3 3 3 39.03 1.41 2.3080 4 2 2 39.53 2.18 2.2797 1 0 13 39.78 3.08 2.2658 2 3 8 39.82 2.67 2.2640 1 3 10 40.76 3.96 2.2136 5 1 1 41.11 8.35 2.1959 1 5 2 41.46 7.98 2.1779 4 2 5 41.86 20.64 2.1579 4 0 10 42.03 1.95 2.1498 3 3 6 42.15 2.99 2.1438 0 5 7 42.21 9.30 2.1408 3 1 11 42.45 8.52 2.1292 5 1 4 42.61 5.02 2.1219 0 1 14 43.06 2.02 2.1008 1 4 9 43.44 1.53 2.0830 1 5 5 43.83 5.98 2.0655 3 2 10 44.08 2.08 2.0544 2 2 12 44.11 3.30 2.0531 2 4 7 44.71 3.09 2.0271 4 3 1 44.92 3.43 2.0178 0 6 3 45.02 1.12 2.0135 3 4 2 45.70 18.14 1.9853 4 2 8 46.00 2.75 1.9731 5 1 7 46.28 2.42 1.9617 4 3 4 46.43 2.10 1.9559 1 2 14 46.79 1.13 1.9416 2 5 3 46.84 6.92 1.9394 3 3 9 46.96 1.25 1.9349 1 1 15 47.32 4.14 1.9210 1 3 13 47.72 7.76 1.9058 6 0 6 47.72 2.75 1.9058 0 6 6 48.39 3.53 1.8809 1 6 1 48.69 2.64 1.8701 6 1 2 48.89 1.17 1.8631 1 0 16 49.36 4.17 1.8464 2 4 10 49.50 7.38 1.8413 2 5 6 49.50 2.40 1.8413 5 2 6 49.59 3.77 1.8384 1 4 12 49.59 5.00 1.8384 4 1 12 49.61 2.97 1.8376 4 3 7 50.52 2.17 1.8066 0 3 15 50.64 2.23 1.8026 0 2 16 50.75 2.61 1.7988 6 1 5 50.86 1.07 1.7953 3 2 13 51.10 5.20 1.7875 5 1 10 51.21 23.79 1.7838 4 4 0 51.40 6.81 1.7778 4 2 11 51.74 11.02 1.7669 0 4 14 51.88 4.80 1.7624 3 5 1 52.13 1.18 1.7547 6 0 9 52.23 4.83 1.7514 2 2 15 53.01 2.87 1.7273 3 3 12 53.29 2.23 1.7189 7 0 4 53.42 4.06 1.7151 2 3 14 53.56 3.39 1.7110 6 2 1 53.77 1.22 1.7049 2 0 17 53.84 6.03 1.7028 2 6 2 54.13 2.78 1.6943 0 7 5 54.59 13.06 1.6810 4 4 6 54.80 1.33 1.6752 0 0 18 55.66 2.64 1.6514 1 3 16 55.76 7.32 1.6485 2 6 5 55.86 4.20 1.6458 2 4 13 56.37 1.12 1.6323 3 4 11 56.42 4.94 1.6309 1 1 18 57.00 3.59 1.6156 1 7 3 57.15 1.10 1.6117 4 1 15 57.26 14.15 1.6089 4 0 16 57.66 1.18 1.5988 0 7 8 57.68 5.99 1.5981 1 6 10 57.91 6.06 1.5924 6 2 7 58.27 3.37 1.5833 4 2 14 58.67 1.30 1.5737 4 5 2 58.84 6.82 1.5695 3 2 16 59.36 3.04 1.5570 6 3 0 59.45 1.02 1.5547 2 5 12 59.45 4.58 1.5547 5 2 12 59.71 4.32 1.5486 5 4 4 59.83 5.50 1.5457 1 5 14 60.14 1.03 1.5386 3 6 3 60.22 3.56 1.5367 8 0 2 60.59 3.96 1.5283 4 3 13 61.11 1.20 1.5164 2 2 18 61.25 1.18 1.5133 0 8 4 61.75 2.06 1.5023 7 2 2 61.92 2.53 1.4987 0 5 16 62.32 2.22 1.4899 6 2 10 62.44 1.20 1.4872 6 3 6 62.54 1.60 1.4853 5 4 7 62.58 1.48 1.4843 0 7 11 62.58 7.34 1.4843 5 3 11 62.77 2.09 1.4804 2 7 4 62.88 2.37 1.4779 3 4 14 63.42 4.48 1.4667 2 4 16 63.52 1.06 1.4646 7 2 5 64.01 1.77 1.4545 4 4 12 64.73 1.79 1.4402 1 3 19 64.81 2.19 1.4386 6 0 15 64.81 1.04 1.4386 0 6 15 65.00 2.83 1.4348 1 2 20 65.28 3.62 1.4294 8 0 8 65.40 3.64 1.4270 5 5 0 65.51 1.03 1.4248 2 7 7 65.97 4.02 1.4160 4 6 1 66.18 1.02 1.4120 6 3 9 66.22 2.15 1.4114 6 4 2 66.28 3.15 1.4103 2 5 15 66.47 5.06 1.4065 1 8 5 67.43 2.02 1.3889 7 3 1 68.21 6.13 1.3749 0 8 10 68.33 8.02 1.3727 5 5 6 68.42 1.40 1.3712 8 1 7 69.30 3.98 1.3559 0 3 21 69.36 4.81 1.3550 0 4 20 69.65 1.45 1.3500 2 7 10 69.74 3.63 1.3484 8 2 0 69.85 4.15 1.3465 4 6 7 70.18 1.51 1.3411 2 6 14 70.36 1.38 1.3381 0 2 22 70.46 3.36 1.3364 8 2 3 70.52 1.73 1.3355 0 5 19 70.72 2.12 1.3321 2 2 21 72.59 1.21 1.3023 2 8 6 72.77 2.86 1.2996 0 6 18 73.35 2.14 1.2907 9 1 2 74.67 3.11 1.2712 4 7 3 74.89 1.24 1.2679 6 2 16 75.70 2.13 1.2564 0 0 24 76.09 1.48 1.2509 2 8 9 76.36 1.78 1.2472 1 5 20 76.82 1.31 1.2409 5 5 12 77.44 1.11 1.2325 2 6 17 78.29 2.11 1.2211 4 4 18 78.63 1.69 1.2167 9 2 1 78.86 1.95 1.2137 2 9 2 79.10 2.78 1.2107 0 10 5 79.55 1.01 1.2050 0 9 12 79.91 1.19 1.2005 1 0 25 80.73 1.90 1.1903 1 9 10 81.27 1.95 1.1838 0 2 25 81.76 1.26 1.1779 0 6 21 82.76 1.05 1.1662 5 1 22 82.91 1.16 1.1644 6 2 19 83.11 2.05 1.1622 2 5 21 84.78 1.51 1.1435 10 0 10 84.80 1.70 1.1432 4 2 23 85.02 1.82 1.1409 8 3 11 85.06 1.21 1.1405 3 6 18 86.12 2.27 1.1291 9 2 10 87.01 4.06 1.1198 8 2 15 87.01 2.26 1.1198 2 8 15 88.62 1.14 1.1036 3 8 13 89.87 1.41 1.0915 4 5 20 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.