Electron microscopy
  
P63mc (186 ) Space Group
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Table 1882. P63mc (186 ) space group.

Name in the International Tables for Crystallography
 P63mc
Lattice type
 P
Patterson space group
 191
Point group
 6mm
Crystal system
 Hexagonal
Laue class
 6/mmm
Asymm
 0 ≤ x ≤ 2/3 and 0 ≤ y ≤ 1/3 and 0 ≤ z ≤ 1 and x ≤ (1+y)/2 and y ≤ x/2
Number of symmetry operators
 12 Absence of reflections

h - k = 3n and l = odd
Symmetry (atomic coordinates)
X, Y, Z; -Y, X-Y, Z; Y-X, -X, Z; -X, -Y, 1/2+Z; Y, Y-X, 1/2+Z; X-Y, X, 1/2+Z; -Y, -X, Z; Y-X, Y, Z; X, X-Y, Z; Y, X, 1/2+Z; X-Y, -Y, 1/2+Z; -X, Y-X, 1/2+Z
Crystal examples
 AlN

 

 

 
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