Dr. Jeremy Burkett has created a new mobile chemistry app to supplement topics in general chemistry courses. It's called "Crystalz" and is currently available in the iTunes App Store. It is an app to help students visualize crystal lattice structure and packing, in high definition space-filling form or simple wire frames. The models can be moved and rotated in the app to see the crystals from any viewpoint and provides structural information about bond angles and sizes.