Crystal

A crystal was a type of solid structure with special properties. In a crystal, the constituent atoms, molecules, or ions featured a special repeating pattern in all dimensions of space.

The Jedi and the Sith used kyber crystals in every lightsaber.

Nova crystals were a type of crystal. Some planets, such as Christophsis, and NaJedha were crystalline in nature.

The Galactic Empire conducted strip mining on Lothal for ore and crystals.

The surface of the planet Galzez was covered in orange crystals.

The caverns of the planet Quarzite was filled with purple crystals.

Behind the scenes
Purple "time crystals" feature as a in-game currency in the non-canon video game Star Wars: Galaxy of Heroes.

Non-canon appearances

 * Star Wars: Galaxy of Heroes