Topic summary
Rhombohedral

Extracted from the Wikipedia article Rhombohedron.
Rhombohedral lattice
The rhombohedral lattice system has rhombohedral cells, with 6 congruent rhombic faces forming a trigonal trapezohedron:
Topic summary

Extracted from the Wikipedia article Rhombohedron.
The rhombohedral lattice system has rhombohedral cells, with 6 congruent rhombic faces forming a trigonal trapezohedron: