Korriban Crystals are the name given to special alchemically treated crystals developed by Uvon Okdoro of the Cult of Shadow to siphon the Dark Side essence from the remains of the planet Korriban after it was destroyed by the third Death Star. The appearance of the crystals varies, but the one uniform trait that can be attributed to them is their reddish-glow. It is unknown exactly how many of the crystals have been created, but it is thought to be considerable as the cult wasted no time in taking advantage of Korriban's destruction.