Chemistry Reference
In-Depth Information
Figure 1.2
The unit cell.
Figure 1.3
Set of coordinates in the hexagonal
and trigonal systems.
perpendicular to the plane (x y). The notation of a plane in these coordinates
will be (j h k l), j, h and k along the axes x y t and l along the z axis, with:
j
+
h
+
k
=
0
When the lattice and the crystal have the same symmetry, which is then
at maximum, it is called holohedry.
