Nova crystal/Legends

Nova crystals were a valuable commodity of unknown practical use. The crystals themselves were bright green, and possibly used as expenisive decoration as a result. It is also possible, though unconfirmed, that they were useable as lightsaber crystals.

The planet Mygeeto held immense deposits of nova crystals amongst (and contributing to) its great mineral wealth.

Behind the scenes
Nova crystals feature as a mineable resource in the RTS Star Wars: Galactic Battlegrounds. In the game, they are found on virtually every world, and are used to research advanced technologies and Jedi/Sith upgrades.

Appearances
Star Wars: Galactic Battlegrounds