Crystals are found on all planets and moons. They come in different size formations, and the size determines the amount of the respective element the player will receive upon mining. There are four variations of crystals: red, yellow, blue, and green. The red crystals have been found to provide the element plutonium, the yellow crystals provide titanium, and the blue crystals provide chrysonite. The green crystals will provide aluminum, emeril, or gold depending on the planet's biome.