International
Tables for
Crystallography
Volume A
Space-group symmetry
Edited by M. I. Aroyo

International Tables for Crystallography (2016). Vol. A, ch. 3.2, p. 720

Table 3.2.1.1 

Th. Hahna and H. Klappera

Table 3.2.1.1| top | pdf |
The ten two-dimensional crystallographic point groups, arranged according to crystal system

The dashed line separates point groups with different Laue classes within one crystal system.

General symbolCrystal system
Oblique (top)
Rectangular (bottom)
SquareHexagonal
n 1 2 4 3 6
nmm m 2mm 4mm 3m 6mm