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 = 150 K
_database_code_amcsd 0006206
CELL PARAMETERS: 9.9698 9.9698 8.3615 90.000 90.000 120.000
SPACE GROUP: P6_3
X-RAY WAVELENGTH: 1.541838
Cell Volume: 719.760
Density (g/cm3): 2.644
MAX. ABS. INTENSITY / VOLUME**2: 7.876840723
RIR: 0.970
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.79 6.45 4.9849 1 1 0 6
20.57 15.80 4.3170 2 0 0 6
20.75 6.89 4.2817 1 1 1 6
21.25 48.97 4.1807 0 0 2 1
23.19 77.31 3.8360 2 0 1 6
23.64 4.47 3.7628 1 0 2 6
27.33 10.46 3.2634 1 2 0 6
27.33 43.74 3.2634 2 1 0 6
29.38 9.39 3.0401 1 2 1 6
29.38 1.79 3.0401 2 1 1 6
29.75 100.00 3.0033 2 0 2 6
31.07 46.15 2.8780 3 0 0 6
33.79 1.06 2.6524 1 0 3 6
34.88 3.89 2.5725 1 2 2 6
34.88 21.56 2.5725 2 1 2 6
36.03 16.64 2.4924 2 2 0 6
36.95 2.16 2.4327 1 1 3 6
37.56 1.89 2.3947 3 1 0 6
37.56 10.84 2.3947 1 3 0 6
37.66 2.73 2.3886 2 2 1 6
37.96 1.72 2.3706 3 0 2 6
38.44 45.54 2.3416 2 0 3 6
39.13 16.97 2.3021 3 1 1 6
39.13 9.89 2.3021 1 3 1 6
41.85 4.40 2.1585 4 0 0 6
42.21 1.03 2.1409 2 2 2 6
42.66 4.92 2.1194 1 2 3 6
42.66 3.35 2.1194 2 1 3 6
43.28 13.28 2.0904 0 0 4 1
43.29 1.11 2.0900 4 0 1 6
43.55 2.20 2.0779 1 3 2 6
43.55 4.95 2.0779 3 1 2 6
44.60 1.24 2.0317 1 0 4 6
45.81 3.20 1.9808 3 2 0 6
47.15 8.54 1.9275 2 3 1 6
47.15 1.51 1.9275 3 2 1 6
47.40 4.83 1.9180 4 0 2 6
48.31 3.03 1.8841 4 1 0 6
48.38 4.61 1.8814 2 0 4 6
49.60 2.42 1.8380 1 4 1 6
51.02 7.10 1.7900 3 2 2 6
51.95 1.10 1.7602 1 2 4 6
51.95 1.05 1.7602 2 1 4 6
53.03 1.39 1.7268 5 0 0 6
53.33 1.50 1.7177 4 1 2 6
53.71 3.23 1.7066 4 0 3 6
54.23 1.72 1.6913 3 0 4 6
54.24 5.75 1.6911 5 0 1 6
56.39 2.52 1.6317 2 4 0 6
56.39 2.99 1.6317 4 2 0 6
57.04 2.27 1.6146 3 2 3 6
57.04 10.34 1.6146 2 3 3 6
57.55 2.05 1.6015 2 4 1 6
57.77 6.77 1.5960 5 0 2 6
58.19 1.10 1.5855 1 1 5 6
59.19 3.27 1.5609 1 4 3 6
59.19 6.19 1.5609 4 1 3 6
59.26 16.69 1.5594 2 0 5 6
59.62 3.40 1.5507 1 5 0 6
59.90 1.74 1.5441 3 3 2 6
60.74 1.57 1.5247 1 5 1 6
60.95 4.31 1.5200 2 4 2 6
61.78 1.10 1.5016 4 0 4 6
62.40 1.12 1.4883 1 2 5 6
63.36 7.92 1.4679 5 0 3 6
64.04 2.44 1.4539 1 5 2 6
64.85 1.12 1.4378 2 3 4 6
65.39 11.30 1.4272 3 3 3 6
67.17 3.66 1.3936 0 0 6 1
67.78 14.76 1.3826 2 5 0 6
67.78 6.47 1.3826 5 2 0 6
68.43 2.56 1.3711 1 3 5 6
68.43 4.66 1.3711 3 1 5 6
70.00 1.12 1.3441 3 4 2 6
70.00 1.27 1.3441 4 3 2 6
71.35 1.43 1.3220 4 0 5 6
71.93 4.68 1.3126 2 5 2 6
74.22 1.58 1.2778 3 2 5 6
74.22 6.90 1.2778 2 3 5 6
75.11 3.35 1.2649 4 3 3 6
75.85 3.65 1.2543 3 0 6 6
78.66 3.58 1.2164 2 2 6 6
79.59 1.22 1.2045 3 1 6 6
79.59 1.95 1.2045 1 3 6 6
79.84 6.04 1.2013 5 0 5 6
81.14 1.37 1.1853 6 0 4 6
81.33 6.27 1.1830 7 0 2 6
83.91 1.09 1.1532 2 5 4 6
85.32 1.29 1.1377 4 4 3 6
85.37 1.24 1.1371 1 5 5 6
86.23 3.72 1.1279 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.