 |
centre of inversion | |
 |
21 screw axis (parallel to c) | |
 |
21 screw axis (parallel to a) | |
 |
21 screw axis (parallel to b) | |
 |
a glide plane (perpendicular to c) | |
 |
mirror plane (perpendicular to a) | |
 |
n glide plane (shown vertical and perpendicular to b) |
The following symmetry elements are shown in the figure:
|
centre of inversion | |
|
21 screw axis (parallel to c) | |
|
21 screw axis (parallel to a) | |
|
21 screw axis (parallel to b) | |
|
a glide plane (perpendicular to c) | |
|
mirror plane (perpendicular to a) | |
|
n glide plane (shown vertical and perpendicular to b) |
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| © Copyright 1995-2006. Birkbeck College, University of London. | Author(s): Jeremy Karl Cockcroft |