Crystal Lab › The 7 frieze groups

The 7 frieze groups

Patterns repeating along one line. Open a group to see its symmetry elements drawn in the cell, its operations, and its Wyckoff positions with a model atom you can move.

The 230 space groups · The 17 plane groups · The 7 frieze groups · The 75 rod groups · The 80 layer groups

Frieze (7)

No.	Symbol	Operations	Wyckoff positions	Settings
1	pa 1	1	1	2
2	pa 2 1 1	2	3	2
3	pa 1 m 1	2	3	2
4	pa 1 1 m	2	2	2
5	pa 1 1 g	2	1	2
6	pa 2 m m	4	6	2
7	pa 2 m g	4	3	2

Operations are counted per conventional cell (lattice centring included). Symbols follow the International Tables; the first listed setting is the standard one.