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 = 15 K
_database_code_amcsd 0006208
CELL PARAMETERS: 9.9801 9.9801 8.3707 90.000 90.000 120.000
SPACE GROUP: P6_3
X-RAY WAVELENGTH: 1.541838
Cell Volume: 722.042
Density (g/cm3): 2.636
MAX. ABS. INTENSITY / VOLUME**2: 7.851159009
RIR: 0.970
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
10.23 1.02 8.6430 1 0 0 6
17.77 6.69 4.9900 1 1 0 6
20.55 15.07 4.3215 2 0 0 6
20.72 6.43 4.2862 1 1 1 6
21.23 48.26 4.1853 0 0 2 1
23.16 76.61 3.8400 2 0 1 6
23.62 4.37 3.7669 1 0 2 6
27.30 11.18 3.2668 1 2 0 6
27.30 42.45 3.2668 2 1 0 6
29.35 8.97 3.0432 1 2 1 6
29.35 1.74 3.0432 2 1 1 6
29.72 100.00 3.0065 2 0 2 6
31.04 45.54 2.8810 3 0 0 6
34.84 3.70 2.5752 1 2 2 6
34.84 21.23 2.5752 2 1 2 6
36.00 16.17 2.4950 2 2 0 6
36.91 2.21 2.4354 1 1 3 6
37.52 1.83 2.3971 3 1 0 6
37.52 10.46 2.3971 1 3 0 6
37.62 2.73 2.3911 2 2 1 6
37.91 1.61 2.3731 3 0 2 6
38.40 44.63 2.3441 2 0 3 6
39.09 9.36 2.3045 1 3 1 6
39.09 17.08 2.3045 3 1 1 6
41.81 4.09 2.1608 4 0 0 6
42.61 4.59 2.1217 1 2 3 6
42.61 3.25 2.1217 2 1 3 6
43.23 13.10 2.0927 0 0 4 1
43.51 2.11 2.0801 1 3 2 6
43.51 4.69 2.0801 3 1 2 6
44.55 1.12 2.0339 1 0 4 6
45.76 2.84 1.9828 3 2 0 6
47.10 8.44 1.9295 2 3 1 6
47.10 1.21 1.9295 3 2 1 6
47.35 4.67 1.9200 4 0 2 6
48.25 2.98 1.8861 4 1 0 6
48.32 4.71 1.8835 2 0 4 6
49.54 2.37 1.8399 1 4 1 6
50.96 7.09 1.7919 3 2 2 6
51.89 1.21 1.7621 1 2 4 6
52.97 1.22 1.7286 5 0 0 6
53.27 1.49 1.7195 4 1 2 6
53.65 3.19 1.7084 4 0 3 6
54.17 1.61 1.6931 3 0 4 6
54.18 5.46 1.6929 5 0 1 6
56.33 2.29 1.6334 2 4 0 6
56.33 3.08 1.6334 4 2 0 6
56.98 2.29 1.6163 3 2 3 6
56.98 9.89 1.6163 2 3 3 6
57.49 2.00 1.6031 2 4 1 6
57.70 6.99 1.5977 5 0 2 6
59.12 3.16 1.5626 1 4 3 6
59.12 5.79 1.5626 4 1 3 6
59.19 15.99 1.5611 2 0 5 6
59.55 3.00 1.5523 1 5 0 6
59.83 1.54 1.5458 3 3 2 6
60.67 1.60 1.5263 1 5 1 6
60.88 4.10 1.5216 2 4 2 6
61.71 1.06 1.5032 4 0 4 6
62.32 1.06 1.4899 1 2 5 6
63.29 7.69 1.4695 5 0 3 6
63.97 2.39 1.4554 1 5 2 6
64.77 1.18 1.4393 2 3 4 6
65.31 10.66 1.4287 3 3 3 6
67.09 3.52 1.3951 0 0 6 1
67.70 14.15 1.3840 2 5 0 6
67.70 6.07 1.3840 5 2 0 6
68.34 2.36 1.3725 1 3 5 6
68.34 4.54 1.3725 3 1 5 6
69.92 1.10 1.3455 3 4 2 6
69.92 1.21 1.3455 4 3 2 6
71.26 1.25 1.3234 4 0 5 6
71.85 4.24 1.3140 2 5 2 6
74.12 6.53 1.2792 2 3 5 6
74.12 1.31 1.2792 3 2 5 6
75.01 3.33 1.2662 4 3 3 6
75.75 3.50 1.2556 3 0 6 6
78.56 3.46 1.2177 2 2 6 6
79.49 1.11 1.2058 3 1 6 6
79.49 1.69 1.2058 1 3 6 6
79.74 5.61 1.2026 5 0 5 6
81.04 1.17 1.1866 6 0 4 6
81.23 5.85 1.1843 7 0 2 6
83.80 1.05 1.1544 2 5 4 6
85.21 1.16 1.1389 4 4 3 6
85.26 1.15 1.1383 1 5 5 6
86.12 3.49 1.1291 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.