Graphite Crystal Lattice Structure Model

This 120 carbon atom graphite molecular model kit can build 4 layers of 6 member hexagonal rings. Each layer has the appearance of a honeycomb lattice similar to interconnected aromatic hydrocarbons.

The carbon atoms in these rings use 20mm bonds while inter-layer connections use 50mm. The longer, flexible bonds simulate van der Waals forces, bonds weaker than covalent. This allows manipulation of the model so that the layers can move slightly relative to each other.

These layers are arranged in 2 ways. The more common & stable alpha (hexagonal, right in image) is indicated as ABAB layer stacking. The less stable is the beta form (rhombohedral, left in image) indicated as ABCA.

See Related Images below for other views of this model: alpha graphite, alpha graphite side view, alpha graphite unit cell, beta graphite, beta graphite side view, beta graphite unit cell.