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 (2)
_database_code_amcsd 0005957
CELL PARAMETERS: 13.5340 5.7890 11.1590 90.000 100.570 90.000
SPACE GROUP: C2/m
X-RAY WAVELENGTH: 1.541838
Cell Volume: 859.454
Density (g/cm3): 4.977
MAX. ABS. INTENSITY / VOLUME**2: 20.40790345
RIR: 1.335
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
8.06 23.02 10.9696 0 0 1 2
13.31 4.33 6.6522 2 0 0 2
14.25 1.35 6.2160 -2 0 1 2
16.16 40.46 5.4848 0 0 2 2
16.70 2.04 5.3083 1 1 0 4
16.81 6.05 5.2752 2 0 1 2
18.02 52.55 4.9215 -1 1 1 4
18.99 2.49 4.6735 -2 0 2 2
19.10 66.80 4.6467 1 1 1 4
22.44 5.17 3.9621 -1 1 2 4
24.17 1.15 3.6821 1 1 2 4
24.34 23.35 3.6565 0 0 3 2
25.30 24.30 3.5205 3 1 0 4
25.42 36.31 3.5038 -3 1 1 4
27.72 100.00 3.2185 3 1 1 4
28.05 81.57 3.1807 -3 1 2 4
28.61 28.89 3.1198 -1 1 3 4
28.72 36.82 3.1080 -4 0 2 2
29.46 43.77 3.0323 4 0 1 2
29.97 4.12 2.9818 2 0 3 2
30.69 22.58 2.9133 1 1 3 4
30.89 63.33 2.8945 0 2 0 2
31.98 10.47 2.7987 0 2 1 4
32.15 61.80 2.7841 3 1 2 4
32.64 80.60 2.7436 -3 1 3 4
32.65 68.34 2.7424 0 0 4 2
32.91 19.95 2.7215 -4 0 3 2
33.77 11.71 2.6541 2 2 0 4
33.99 12.86 2.6376 4 0 2 2
34.17 6.49 2.6240 -2 2 1 4
35.05 36.25 2.5599 0 2 2 4
35.37 9.01 2.5376 2 2 1 4
35.74 1.69 2.5126 -1 1 4 4
36.51 3.40 2.4608 -2 2 2 4
36.71 2.86 2.4484 -5 1 1 4
37.19 5.50 2.4177 5 1 0 4
37.97 8.92 2.3695 3 1 3 4
38.02 2.12 2.3668 1 1 4 4
38.53 5.66 2.3368 -4 0 4 2
38.56 5.50 2.3345 -3 1 4 4
38.76 1.02 2.3234 2 2 2 4
39.72 6.68 2.2695 0 2 3 4
39.84 13.02 2.2625 4 0 3 2
39.98 10.35 2.2553 -6 0 1 2
40.88 1.15 2.2075 -2 0 5 2
41.01 4.36 2.2008 -6 0 2 2
41.17 43.98 2.1926 -4 2 1 4
41.35 20.75 2.1835 4 2 0 4
42.69 9.54 2.1182 -4 2 2 4
43.08 8.06 2.0999 6 0 1 2
43.21 9.12 2.0937 4 2 1 4
43.34 1.58 2.0876 5 1 2 4
43.46 3.04 2.0821 -1 1 5 4
43.58 3.04 2.0769 2 2 3 4
43.69 5.43 2.0720 -6 0 3 2
44.75 15.55 2.0252 3 1 4 4
45.41 19.24 1.9971 -3 1 5 4
45.57 45.28 1.9908 0 2 4 4
45.70 1.70 1.9851 -5 1 4 4
45.76 4.31 1.9827 -4 2 3 4
45.80 14.94 1.9810 -2 2 4 4
45.87 2.88 1.9784 2 0 5 2
45.90 12.71 1.9771 1 1 5 4
46.59 3.42 1.9496 4 2 2 4
48.15 3.83 1.8898 -1 3 1 4
48.61 7.12 1.8731 1 3 1 4
49.20 1.42 1.8518 -2 0 6 2
49.51 12.49 1.8411 2 2 4 4
49.88 1.64 1.8283 0 0 6 2
50.17 5.09 1.8182 -4 2 4 4
50.37 15.79 1.8116 -7 1 2 4
50.54 14.45 1.8058 7 1 0 4
51.25 7.25 1.7826 4 2 3 4
51.36 4.21 1.7790 -6 2 1 4
51.66 2.53 1.7694 3 3 0 4
51.73 4.41 1.7673 -3 3 1 4
51.95 6.40 1.7602 6 2 0 4
52.01 6.08 1.7584 6 0 3 2
52.11 3.09 1.7553 -2 2 5 4
52.21 11.60 1.7519 -6 2 2 4
52.24 3.39 1.7510 3 1 5 4
52.33 3.92 1.7484 0 2 5 4
52.51 11.84 1.7428 -4 0 6 2
52.97 2.91 1.7288 -3 1 6 4
53.02 11.46 1.7271 3 3 1 4
53.06 8.19 1.7259 -6 0 5 2
53.22 7.61 1.7212 -3 3 2 4
53.55 3.64 1.7113 -1 3 3 4
53.94 12.42 1.6997 6 2 1 4
54.14 8.09 1.6941 4 0 5 2
54.25 2.34 1.6909 1 1 6 4
54.25 9.99 1.6909 -8 0 1 2
54.46 9.15 1.6848 -6 2 3 4
54.63 5.81 1.6800 5 1 4 4
54.65 4.83 1.6793 -8 0 2 2
54.82 3.24 1.6747 1 3 3 4
55.70 3.42 1.6502 -4 2 5 4
55.74 10.73 1.6491 3 3 2 4
55.87 9.71 1.6457 -7 1 4 4
56.06 11.48 1.6405 -3 3 3 4
56.35 6.57 1.6328 7 1 2 4
56.42 1.41 1.6308 -8 0 3 2
56.99 2.04 1.6160 4 2 4 4
57.25 3.08 1.6092 6 2 2 4
57.99 1.35 1.5904 -6 2 4 4
58.94 4.74 1.5671 0 0 7 2
59.70 1.19 1.5489 3 3 3 4
59.83 7.07 1.5457 0 2 6 4
60.12 1.15 1.5390 -3 3 4 4
60.35 3.21 1.5338 -1 1 7 4
60.35 5.35 1.5337 3 1 6 4
61.12 2.04 1.5161 8 0 2 2
61.13 10.53 1.5160 -3 1 7 4
62.17 2.56 1.4931 -4 2 6 4
62.27 1.71 1.4909 4 0 6 2
63.07 1.26 1.4740 1 1 7 4
63.64 2.28 1.4621 4 2 5 4
63.72 2.42 1.4606 -8 0 5 2
63.91 3.27 1.4567 2 2 6 4
64.37 15.98 1.4473 0 4 0 2
64.76 4.09 1.4396 3 3 4 4
65.28 5.12 1.4294 -3 3 5 4
65.65 1.11 1.4222 -9 1 3 4
65.66 2.59 1.4220 1 3 5 4
65.72 3.00 1.4208 -8 2 3 4
65.82 1.98 1.4189 8 0 3 2
66.09 3.21 1.4139 -7 1 6 4
66.76 3.65 1.4012 8 2 1 4
66.81 5.00 1.4003 7 1 4 4
66.86 1.31 1.3994 0 4 2 4
67.26 2.78 1.3921 6 2 4 4
68.28 1.99 1.3737 -9 1 4 4
68.39 5.80 1.3718 -6 2 6 4
68.42 5.35 1.3712 0 0 8 2
69.26 4.89 1.3565 -7 3 2 4
69.41 4.07 1.3541 7 3 0 4
69.90 1.18 1.3457 0 4 3 4
70.06 2.88 1.3430 8 2 2 4
70.78 1.37 1.3312 -10 0 3 2
70.82 1.01 1.3305 3 3 5 4
70.82 1.08 1.3304 10 0 0 2
71.97 3.32 1.3120 -4 4 2 4
72.35 3.94 1.3061 4 4 1 4
72.49 2.09 1.3040 -8 2 5 4
72.84 2.06 1.2986 5 3 4 4
73.22 1.13 1.2927 10 0 1 2
73.75 5.91 1.2847 6 2 5 4
73.90 3.62 1.2825 -7 3 4 4
74.07 7.76 1.2800 0 4 4 4
74.22 2.13 1.2778 -4 4 3 4
74.31 2.58 1.2764 7 3 2 4
74.47 1.02 1.2741 8 2 3 4
74.83 1.60 1.2688 4 4 2 4
75.06 4.88 1.2656 -6 2 7 4
76.94 3.00 1.2392 0 2 8 4
77.82 1.01 1.2274 -1 3 7 4
77.82 2.03 1.2274 3 3 6 4
78.06 1.10 1.2242 -10 2 2 4
78.08 3.38 1.2240 -10 2 1 4
78.45 1.53 1.2192 4 4 3 4
78.45 2.50 1.2191 3 1 8 4
78.52 4.28 1.2182 -3 3 7 4
78.53 1.91 1.2180 -6 4 1 4
79.36 3.05 1.2074 -3 1 9 4
79.46 3.55 1.2062 4 2 7 4
79.73 1.09 1.2027 -11 1 2 4
79.92 2.61 1.2003 -11 1 1 4
80.18 3.26 1.1972 -7 1 8 4
80.62 1.26 1.1917 6 4 1 4
80.69 1.25 1.1908 -11 1 3 4
81.05 1.03 1.1865 -6 4 3 4
81.12 1.91 1.1856 7 1 6 4
83.01 1.26 1.1633 -7 3 6 4
83.59 1.13 1.1567 -8 2 7 4
83.68 2.10 1.1557 7 3 4 4
83.73 1.24 1.1552 11 1 1 4
84.89 2.53 1.1423 -10 2 5 4
84.99 2.94 1.1412 10 2 2 4
85.92 1.86 1.1313 8 0 6 2
86.02 1.44 1.1302 -11 1 5 4
86.45 1.40 1.1256 8 2 5 4
86.93 1.30 1.1207 -10 0 7 2
87.24 1.42 1.1174 6 4 3 4
87.64 3.01 1.1134 -4 4 6 4
88.05 1.56 1.1093 3 5 1 4
88.08 2.02 1.1090 -6 4 5 4
88.21 1.43 1.1077 -3 5 2 4
88.61 1.54 1.1037 -4 0 10 2
88.95 2.44 1.1004 4 4 5 4
89.04 2.67 1.0995 -8 4 1 4
89.37 1.18 1.0963 -8 4 2 4
89.41 1.63 1.0959 -10 2 6 4
================================================================================
XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.