Nepheline
Angel R J, Gatta G C, Boffa Ballaran T, Carpenter M A
The Canadian Mineralogist 46 (2008) 1465-1476
The mechanism of coupling in the modulated structure of nepheline
Locality: Snipe River, Tambani, Malawi
Note: annealed
Note: T = 298 K
_database_code_amcsd 0006209
CELL PARAMETERS: 9.9867 9.9861 8.3697 90.000 90.000 120.000
SPACE GROUP: P6_3
X-RAY WAVELENGTH: 1.541838
Cell Volume: 722.867
Density (g/cm3): 2.633
MAX. ABS. INTENSITY / VOLUME**2: 7.733183651
RIR: 0.956
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.76 6.18 4.9934 1 1 0 6
20.54 16.99 4.3242 2 0 0 6
20.71 7.26 4.2882 1 1 1 6
21.23 49.95 4.1849 0 0 2 1
23.15 78.56 3.8419 2 0 1 6
23.62 4.42 3.7670 1 0 2 6
27.28 10.49 3.2689 1 2 0 6
27.28 44.62 3.2689 2 1 0 6
29.33 9.58 3.0449 1 2 1 6
29.33 1.73 3.0449 2 1 1 6
29.71 100.00 3.0073 2 0 2 6
31.02 45.43 2.8828 3 0 0 6
33.76 1.21 2.6552 1 0 3 6
34.83 4.11 2.5761 1 2 2 6
34.83 21.12 2.5761 2 1 2 6
35.97 17.09 2.4967 2 2 0 6
36.91 2.09 2.4355 1 1 3 6
37.49 10.98 2.3987 1 3 0 6
37.49 1.73 2.3987 3 1 0 6
37.59 2.57 2.3925 2 2 1 6
37.90 1.74 2.3741 3 0 2 6
38.40 45.10 2.3443 2 0 3 6
39.06 9.96 2.3059 1 3 1 6
39.06 16.42 2.3059 3 1 1 6
41.78 4.41 2.1621 4 0 0 6
42.60 4.79 2.1221 1 2 3 6
42.60 3.31 2.1221 2 1 3 6
43.22 1.26 2.0935 4 0 1 6
43.24 13.15 2.0924 0 0 4 1
43.49 2.14 2.0811 1 3 2 6
43.49 4.93 2.0811 3 1 2 6
44.55 1.22 2.0338 1 0 4 6
45.73 3.47 1.9841 3 2 0 6
47.07 8.40 1.9307 2 3 1 6
47.07 1.73 1.9306 3 2 1 6
47.32 4.68 1.9209 4 0 2 6
48.22 2.98 1.8873 4 1 0 6
48.32 4.12 1.8835 2 0 4 6
49.51 2.21 1.8411 1 4 1 6
50.93 6.84 1.7928 3 2 2 6
51.88 1.06 1.7623 1 2 4 6
51.88 1.10 1.7623 2 1 4 6
52.94 1.54 1.7297 5 0 0 6
53.24 1.44 1.7204 4 1 2 6
53.63 3.26 1.7090 4 0 3 6
54.14 5.73 1.6939 5 0 1 6
54.16 1.66 1.6934 3 0 4 6
56.28 2.57 1.6345 2 4 0 6
56.29 2.77 1.6344 4 2 0 6
56.95 9.88 1.6169 2 3 3 6
56.95 2.10 1.6169 3 2 3 6
57.45 1.88 1.6042 2 4 1 6
57.67 6.17 1.5986 5 0 2 6
58.12 1.20 1.5871 1 1 5 6
59.10 3.21 1.5632 1 4 3 6
59.10 6.10 1.5632 4 1 3 6
59.19 16.47 1.5611 2 0 5 6
59.51 3.50 1.5534 1 5 0 6
59.80 1.83 1.5466 3 3 2 6
60.63 1.44 1.5273 1 5 1 6
60.84 4.10 1.5225 2 4 2 6
61.69 1.06 1.5036 4 0 4 6
62.32 1.07 1.4900 1 2 5 6
63.25 7.35 1.4701 5 0 3 6
63.93 2.39 1.4563 1 5 2 6
65.28 10.94 1.4294 3 3 3 6
67.10 3.40 1.3950 0 0 6 1
67.65 13.93 1.3849 2 5 0 6
67.65 6.39 1.3849 5 2 0 6
68.33 2.47 1.3727 1 3 5 6
68.33 4.38 1.3727 3 1 5 6
69.87 1.20 1.3463 4 3 2 6
71.24 1.49 1.3236 4 0 5 6
71.80 4.61 1.3148 2 5 2 6
74.10 6.52 1.2794 2 3 5 6
74.10 1.67 1.2794 3 2 5 6
74.97 3.00 1.2668 4 3 3 6
75.75 3.38 1.2557 3 0 6 6
78.55 3.36 1.2178 2 2 6 6
79.48 1.97 1.2059 1 3 6 6
79.48 1.24 1.2059 3 1 6 6
79.72 5.73 1.2029 5 0 5 6
81.00 1.33 1.1870 6 0 4 6
81.17 5.77 1.1850 7 0 2 6
81.56 1.05 1.1803 3 3 5 6
85.15 1.21 1.1394 4 4 3 6
85.23 1.18 1.1386 1 5 5 6
86.06 3.48 1.1297 7 0 3 6
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XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.