Geometric Crystal Structure Diagram

The image displays two distinct geometric representations of crystal structures within hexagonal frameworks. On the left, a complex arrangement of multi-colored tetrahedra (blue, white, beige, light yellow) is shown, with red spheres marking their vertices and additional points in the lattice, suggesting a three-dimensional atomic packing. The right side presents a different view or layer, possibly a top-down perspective, with more uniformly oriented tetrahedra and red spheres, depicting an ordered crystalline arrangement of atoms or coordination polyhedra within a hexagonal unit.

crystal structure - geometric - tetrahedra - atomic packing - unit cell - crystallography