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 = 100 K
_database_code_amcsd 0006207
CELL PARAMETERS: 9.9685 9.9685 8.3608 90.000 90.000 120.000
SPACE GROUP: P6_3
X-RAY WAVELENGTH: 1.541838
Cell Volume: 719.512
Density (g/cm3): 2.645
MAX. ABS. INTENSITY / VOLUME**2: 7.937664269
RIR: 0.977
RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
2-THETA INTENSITY D-SPACING H K L Multiplicity
17.80 6.51 4.9843 1 1 0 6
20.58 15.43 4.3165 2 0 0 6
20.75 6.70 4.2812 1 1 1 6
21.25 48.49 4.1804 0 0 2 1
23.19 76.73 3.8355 2 0 1 6
23.65 4.39 3.7625 1 0 2 6
27.33 10.48 3.2630 1 2 0 6
27.33 43.16 3.2630 2 1 0 6
29.38 9.31 3.0397 1 2 1 6
29.38 1.78 3.0397 2 1 1 6
29.75 100.00 3.0029 2 0 2 6
31.08 46.26 2.8777 3 0 0 6
34.88 3.75 2.5722 1 2 2 6
34.88 21.50 2.5722 2 1 2 6
36.04 16.59 2.4921 2 2 0 6
36.95 2.18 2.4325 1 1 3 6
37.56 1.82 2.3944 3 1 0 6
37.56 10.79 2.3944 1 3 0 6
37.66 2.75 2.3883 2 2 1 6
37.96 1.66 2.3703 3 0 2 6
38.45 45.39 2.3413 2 0 3 6
39.13 17.11 2.3018 3 1 1 6
39.13 9.80 2.3018 1 3 1 6
41.86 4.33 2.1582 4 0 0 6
42.67 4.88 2.1192 1 2 3 6
42.67 3.28 2.1192 2 1 3 6
43.29 13.24 2.0902 0 0 4 1
43.30 1.05 2.0897 4 0 1 6
43.56 4.78 2.0777 3 1 2 6
43.56 2.23 2.0777 1 3 2 6
44.60 1.21 2.0315 1 0 4 6
45.82 3.10 1.9805 3 2 0 6
47.16 8.56 1.9272 2 3 1 6
47.16 1.40 1.9272 3 2 1 6
47.41 4.79 1.9177 4 0 2 6
48.31 3.06 1.8839 4 1 0 6
48.38 4.68 1.8812 2 0 4 6
49.60 2.45 1.8378 1 4 1 6
51.03 7.13 1.7898 3 2 2 6
51.95 1.07 1.7600 1 2 4 6
51.95 1.02 1.7600 2 1 4 6
53.04 1.32 1.7266 5 0 0 6
53.34 1.52 1.7175 4 1 2 6
53.72 3.24 1.7064 4 0 3 6
54.24 1.76 1.6912 3 0 4 6
54.25 5.76 1.6909 5 0 1 6
56.40 2.47 1.6315 2 4 0 6
56.40 3.05 1.6315 4 2 0 6
57.05 10.39 1.6144 2 3 3 6
57.05 2.32 1.6144 3 2 3 6
57.56 2.06 1.6013 2 4 1 6
57.77 6.94 1.5958 5 0 2 6
58.19 1.06 1.5853 1 1 5 6
59.20 3.33 1.5607 1 4 3 6
59.20 6.19 1.5607 4 1 3 6
59.26 16.75 1.5592 2 0 5 6
59.63 3.31 1.5505 1 5 0 6
59.91 1.67 1.5440 3 3 2 6
60.75 1.61 1.5245 1 5 1 6
60.96 4.33 1.5198 2 4 2 6
61.79 1.10 1.5015 4 0 4 6
62.40 1.14 1.4881 1 2 5 6
63.37 8.07 1.4677 5 0 3 6
64.05 2.43 1.4538 1 5 2 6
64.86 1.12 1.4377 2 3 4 6
65.40 11.40 1.4271 3 3 3 6
67.18 3.74 1.3935 0 0 6 1
67.79 14.89 1.3824 2 5 0 6
67.79 6.51 1.3824 5 2 0 6
68.43 2.57 1.3709 1 3 5 6
68.43 4.73 1.3709 3 1 5 6
70.01 1.13 1.3439 3 4 2 6
70.01 1.33 1.3439 4 3 2 6
71.35 1.40 1.3218 4 0 5 6
71.94 4.60 1.3125 2 5 2 6
74.22 1.52 1.2777 3 2 5 6
74.22 7.01 1.2777 2 3 5 6
75.12 3.44 1.2647 4 3 3 6
75.86 3.67 1.2542 3 0 6 6
78.67 3.61 1.2162 2 2 6 6
79.60 1.19 1.2044 3 1 6 6
79.60 1.92 1.2044 1 3 6 6
79.85 6.15 1.2012 5 0 5 6
81.15 1.31 1.1852 6 0 4 6
81.34 6.33 1.1829 7 0 2 6
83.92 1.10 1.1530 2 5 4 6
85.33 1.30 1.1375 4 4 3 6
85.38 1.25 1.1370 1 5 5 6
86.25 3.82 1.1278 7 0 3 6
================================================================================
XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.