Chevkinite-(Ce) Sokolova E V, Hawthorne F C, Della Ventura G, Kartashov P M The Canadian Mineralogist 42 (2004) 1013-1025 Chevkinite-(Ce): Crystal structure and the effect of moderate radiation-induced damage on site-occupancy refinement Locality: Mongolia Reported formula: (Ce1.85 La1.11 Nd.53 Pr.15 Sm.04 Gd.03 Ca.32 Th.02) (Fe2+.85 Mn2+.04 Zr.03 Y.03 Ca.05) (Ti2.54 Fe3+1.19 Nb.15) Si4.06 O22 Crystal (2an) _database_code_amcsd 0005958 CELL PARAMETERS: 13.4000 5.7232 11.0573 90.000 100.537 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 833.694 Density (g/cm3): 5.123 MAX. ABS. INTENSITY / VOLUME**2: 23.28905188 RIR: 1.480 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 8.13 17.59 10.8708 0 0 1 2 13.44 5.48 6.5870 2 0 0 2 14.39 1.62 6.1544 -2 0 1 2 16.31 36.74 5.4354 0 0 2 2 16.89 1.41 5.2493 1 1 0 4 16.97 5.41 5.2259 2 0 1 2 18.22 48.29 4.8679 -1 1 1 4 19.18 1.48 4.6284 -2 0 2 2 19.31 65.23 4.5976 1 1 1 4 22.68 5.18 3.9214 -1 1 2 4 23.04 1.12 3.8601 2 0 2 2 24.42 1.07 3.6455 1 1 2 4 24.57 18.35 3.6236 0 0 3 2 25.57 20.15 3.4840 3 1 0 4 25.69 35.62 3.4671 -3 1 1 4 28.00 100.00 3.1861 3 1 1 4 28.35 77.10 3.1480 -3 1 2 4 28.90 26.67 3.0892 -1 1 3 4 29.02 36.48 3.0772 -4 0 2 2 29.75 39.18 3.0033 4 0 1 2 30.25 4.40 2.9549 2 0 3 2 30.99 22.41 2.8854 1 1 3 4 31.26 62.15 2.8616 0 2 0 2 32.35 9.38 2.7673 0 2 1 4 32.47 56.00 2.7570 3 1 2 4 32.96 67.12 2.7177 0 0 4 2 32.98 82.10 2.7160 -3 1 3 4 33.25 18.14 2.6948 -4 0 3 2 34.16 10.74 2.6246 2 2 0 4 34.32 13.34 2.6129 4 0 2 2 34.57 6.02 2.5948 -2 2 1 4 35.45 35.37 2.5321 0 2 2 4 35.77 7.90 2.5099 2 2 1 4 36.09 1.18 2.4886 -1 1 4 4 36.93 2.96 2.4340 -2 2 2 4 37.10 2.49 2.4234 -5 1 1 4 37.58 5.02 2.3934 5 1 0 4 38.35 10.65 2.3471 3 1 3 4 38.39 1.77 2.3447 1 1 4 4 38.92 6.92 2.3142 -4 0 4 2 38.96 4.71 2.3117 -3 1 4 4 40.15 6.87 2.2458 0 2 3 4 40.23 12.73 2.2417 4 0 3 2 40.39 9.56 2.2329 -6 0 1 2 41.44 4.38 2.1789 -6 0 2 2 41.64 42.07 2.1690 -4 2 1 4 41.82 21.97 2.1601 4 2 0 4 43.17 10.94 2.0955 -4 2 2 4 43.52 8.02 2.0797 6 0 1 2 43.69 9.11 2.0717 4 2 1 4 43.79 1.23 2.0674 5 1 2 4 43.90 3.52 2.0625 -1 1 5 4 44.05 2.77 2.0557 2 2 3 4 44.15 5.84 2.0515 -6 0 3 2 45.19 15.17 2.0063 3 1 4 4 45.88 19.44 1.9779 -3 1 5 4 46.06 46.44 1.9706 0 2 4 4 46.19 2.18 1.9654 -5 1 4 4 46.28 3.81 1.9618 -4 2 3 4 46.31 15.53 1.9607 -2 2 4 4 46.31 2.97 1.9606 2 0 5 2 46.35 13.82 1.9589 1 1 5 4 47.10 4.30 1.9296 4 2 2 4 48.74 3.84 1.8685 -1 3 1 4 48.97 1.17 1.8600 5 1 3 4 49.20 7.51 1.8520 1 3 1 4 49.69 1.84 1.8348 -2 0 6 2 50.04 12.03 1.8227 2 2 4 4 50.36 1.77 1.8118 0 0 6 2 50.74 4.87 1.7994 -4 2 4 4 50.92 16.08 1.7933 -7 1 2 4 51.09 16.72 1.7878 7 1 0 4 51.81 7.27 1.7647 4 2 3 4 51.94 4.62 1.7604 -6 2 1 4 52.28 2.32 1.7498 3 3 0 4 52.35 4.62 1.7476 -3 3 1 4 52.53 5.61 1.7420 6 2 0 4 52.53 6.46 1.7420 6 0 3 2 52.67 2.75 1.7377 -2 2 5 4 52.77 4.42 1.7349 3 1 5 4 52.81 13.28 1.7336 -6 2 2 4 52.89 3.96 1.7312 0 2 5 4 53.05 11.37 1.7264 -4 0 6 2 53.51 3.33 1.7123 -3 1 6 4 53.63 8.73 1.7091 -6 0 5 2 53.66 12.84 1.7081 3 3 1 4 53.86 8.43 1.7021 -3 3 2 4 54.19 3.97 1.6927 -1 3 3 4 54.55 12.57 1.6823 6 2 1 4 54.67 7.70 1.6788 4 0 5 2 54.79 2.46 1.6754 1 1 6 4 54.84 10.72 1.6741 -8 0 1 2 55.08 8.77 1.6673 -6 2 3 4 55.19 7.11 1.6643 5 1 4 4 55.25 4.38 1.6626 -8 0 2 2 55.46 3.58 1.6567 1 3 3 4 56.32 3.77 1.6335 -4 2 5 4 56.41 10.89 1.6313 3 3 2 4 56.48 10.57 1.6292 -7 1 4 4 56.73 13.34 1.6226 -3 3 3 4 56.95 7.44 1.6170 7 1 2 4 57.04 1.64 1.6145 -8 0 3 2 57.60 2.70 1.6001 4 2 4 4 57.88 3.81 1.5931 6 2 2 4 58.17 1.01 1.5858 8 0 1 2 58.65 1.57 1.5740 -6 2 4 4 59.53 4.66 1.5530 0 0 7 2 59.96 1.27 1.5428 -6 0 6 2 60.14 1.03 1.5386 -8 0 4 2 60.40 1.68 1.5325 3 3 3 4 60.48 7.26 1.5308 0 2 6 4 60.84 1.10 1.5226 -3 3 4 4 60.97 6.17 1.5197 3 1 6 4 60.97 3.83 1.5196 -1 1 7 4 61.77 12.45 1.5018 -3 1 7 4 61.78 1.98 1.5017 8 0 2 2 62.87 2.94 1.4782 -4 2 6 4 62.90 2.48 1.4775 4 0 6 2 63.72 1.67 1.4605 1 1 7 4 64.34 2.47 1.4480 4 2 5 4 64.43 2.22 1.4462 -8 0 5 2 64.51 1.05 1.4444 -1 3 5 4 64.60 3.47 1.4427 2 2 6 4 65.20 18.22 1.4308 0 4 0 2 65.52 4.28 1.4247 3 3 4 4 66.06 5.96 1.4144 -3 3 5 4 66.40 1.17 1.4080 -9 1 3 4 66.43 3.36 1.4074 1 3 5 4 66.49 3.87 1.4062 -8 2 3 4 66.53 2.22 1.4055 8 0 3 2 66.83 3.78 1.4000 -7 1 6 4 67.53 6.35 1.3871 7 1 4 4 67.53 4.60 1.3871 8 2 1 4 67.72 1.55 1.3837 0 4 2 4 68.01 2.73 1.3785 6 2 4 4 69.06 2.65 1.3600 -9 1 4 4 69.13 6.36 1.3589 0 0 8 2 69.18 6.99 1.3580 -6 2 6 4 70.12 5.66 1.3421 -7 3 2 4 70.26 5.44 1.3398 7 3 0 4 70.80 1.15 1.3308 0 4 3 4 70.87 3.04 1.3297 8 2 2 4 71.60 1.91 1.3179 -10 0 3 2 71.65 1.56 1.3171 3 3 5 4 72.28 1.08 1.3071 -3 3 6 4 72.91 4.15 1.2974 -4 4 2 4 73.21 1.01 1.2928 1 1 8 4 73.29 4.33 1.2917 4 4 1 4 73.35 2.35 1.2907 -8 2 5 4 73.71 2.77 1.2853 5 3 4 4 74.06 1.80 1.2802 10 0 1 2 74.59 6.98 1.2724 6 2 5 4 74.82 4.42 1.2690 -7 3 4 4 75.02 9.57 1.2661 0 4 4 4 75.18 2.40 1.2637 -4 4 3 4 75.22 3.16 1.2632 7 3 2 4 75.34 1.22 1.2616 8 2 3 4 75.80 2.20 1.2550 4 4 2 4 75.94 5.89 1.2530 -6 2 7 4 77.81 4.46 1.2275 0 2 8 4 78.54 1.29 1.2179 -4 2 8 4 78.75 2.72 1.2152 3 3 6 4 78.76 1.32 1.2151 -1 3 7 4 79.02 1.18 1.2117 -10 2 2 4 79.03 4.11 1.2116 -10 2 1 4 79.31 2.82 1.2080 3 1 8 4 79.46 2.07 1.2061 4 4 3 4 79.48 5.58 1.2059 -3 3 7 4 79.57 2.35 1.2047 -6 4 1 4 80.25 3.73 1.1962 -3 1 9 4 80.36 4.53 1.1948 4 2 7 4 80.70 1.91 1.1907 -11 1 2 4 80.89 3.23 1.1884 -11 1 1 4 81.12 4.12 1.1856 -7 1 8 4 81.68 1.34 1.1788 -11 1 3 4 81.69 1.56 1.1788 6 4 1 4 82.04 2.66 1.1746 7 1 6 4 82.13 1.27 1.1736 -6 4 3 4 82.56 1.23 1.1686 10 2 1 4 83.41 1.19 1.1588 1 1 9 4 83.82 1.27 1.1541 -11 1 4 4 84.08 1.62 1.1513 -7 3 6 4 84.63 1.43 1.1452 -8 2 7 4 84.73 3.09 1.1441 7 3 4 4 84.75 1.39 1.1439 11 1 1 4 85.97 3.69 1.1307 -10 2 5 4 86.04 3.74 1.1299 10 2 2 4 86.16 1.29 1.1287 -9 3 4 4 86.91 2.26 1.1209 8 0 6 2 87.10 1.72 1.1189 -11 1 5 4 87.50 2.29 1.1148 8 2 5 4 87.70 1.19 1.1128 0 2 9 4 88.01 1.95 1.1097 -10 0 7 2 88.12 1.02 1.1086 10 0 4 2 88.40 1.15 1.1058 11 1 2 4 88.41 2.06 1.1056 6 4 3 4 88.43 1.19 1.1055 5 1 8 4 88.82 3.86 1.1016 -4 4 6 4 89.29 2.89 1.0971 -6 4 5 4 89.31 2.28 1.0968 3 5 1 4 89.48 1.98 1.0953 -3 5 2 4 89.73 1.18 1.0928 -7 1 9 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.