The structure of graphite crystal is a repetitive pattern. This pattern gets disrupted at the surface of the crystal and leads to what's called 'surface states', which are like waves that slowly fade ...

It is also worthwhile to take along the model of the graphite crystal structure. Cautions: The instrument is getting old and fragile. Do not bump it. Please turn down the high voltage when not in use.

By subjecting graphite to extreme pressure and heat, researchers synthesized a rare hexagonal diamond, also known as lonsdaleite—a crystal structure that has long been theorized to be stronger ...