These are chemistry kits specifically designed for growing crystals! Crystals sets are available for all ages and education levels.
There are several Smithsonian crystal sets available. These kits are intended for use under adult supervision. Everything except water is included. Several crystal shapes and colors are offered. Lots of educational material is provided.
Several kits are designed specially for growing geodes, or crystals within rocks or plaster. Other sets provide unopened natural geodes, which can be opened for the first time. One of the crystal kits allows you to grow a geode that will glow in the dark.
An alternative to growing your own crystals is purchasing rock, mineral, or gemstone specimens. Physical specimens, CD-ROMs, and books provide a look into the life of crystals. You can even get fluorescent minerals that will glow under a black light.
4. Crystal Globe
This globe (sometimes called a crystal cave) is the ultimate in no-fuss crystal growing! The globe is available in several colors. Just shake the globe to start the growing process anew.