Diamond
Graphite (pencil lead) and diamond are both solid, crystalline forms of carbon. Despite having the same chemical composition (carbon), they have very different properties. This is attributed to the way their atoms are arranged in space.
A crystallographic unit cell is the simplest group of atoms that yield the crystal structure when repeated in three dimensions. Being familiar with the mathematics of the diamond lattice structure, I modeled it using Grasshopper as an exercise in accuracy in algorithmic design.
