/usr/share/xcrysden/examples/WIEN_struct_files/a-quartz.struct is in xcrysden-data 1.5.60-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | SiO2, alpha quartz
H 2
RELA
9.426630 9.426630 10.330553 90.000000 90.000000120.000000
-1 0.4735339 0.0000000 0.0000000
3 1
-1 0.0000000 0.4735339 0.6666667
-1 0.5264661 0.5264661 0.3333333
Si 781 .000500000 1.45000 14.00000
0.0000000-0.5000000 0.8660254
0.0000000-0.8660254-0.5000000
1.0000000 0.0000000 0.0000000
-2 0.4126002 0.2609634 0.1231508
6 1
-2 0.7390366 0.1516368 0.7898178
-2 0.8483632 0.5873998 0.4564838
-2 0.2609634 0.4126002 0.5435162
-2 0.5873998 0.8483632 0.2101822
-2 0.1516368 0.7390366 0.8768492
O 781 .000500000 1.45000 8.00000
1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
6
1-1 00.00000000
0-1 00.00000000
0 0-10.00000000
1
1 0 00.00000000
0 1 00.00000000
0 0 10.00000000
2
-1 1 00.00000000
-1 0 00.00000000
0 0 10.33333333
3
0-1 00.00000000
1-1 00.00000000
0 0 10.66666667
4
0 1 00.00000000
1 0 00.00000000
0 0-10.66666667
5
-1 0 00.00000000
-1 1 00.00000000
0 0-10.33333333
6
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