| 1. | The'/'symbol indicates that the twofold axis is perpendicular to the mirror plane.
|
| 2. | Rotation axes, mirror planes and inversion centres are symmetry elements, not operations.
|
| 3. | It is the only lattice type that itself has no mirror planes.
|
| 4. | They make perfect mirror planes and look like upside-down water falls.
|
| 5. | The symmetry of Cymrite is classified as having a mirror plane.
|
| 6. | It also has a mirror plane perpendicular to the c-axis.
|
| 7. | Octahedral symmetry diagram showing mirror planes as great circles ( 6 red, 3 blue ).
|
| 8. | The 2 / m symmetry group indicates a two-fold axis with a perpendicular mirror plane.
|
| 9. | In group theory, the rotation axes and mirror planes are called " symmetry elements ".
|
| 10. | Similarly ? is symmetric and ? * is antisymmetric with respect to the mirror plane.
|