Nova crystals are a refined form of the raw nova that is used in the construction of explosives. Raw Nova taken from the ground and removed from the surrounding rock ore is inherently unstable, hence its typical usage in explosives and other dangerous devices. The refined crystals are then sometimes used in jewellery, but are mainly used as a form of payment, replacing the more widespread Galactic Standard credit. Used mainly in the Outer Rim where the central governments are distrusted, they typically accepted alongside credits as payment. Their bright green colouration however can occasionally attract unwarranted attention.