Zoph, a planet situated within the Outer Rim Territories, served as the origin point for the Zophis crystal, a specific variant of the kyber crystal. A considerable period prior to the Clone Wars conflict between the Galactic Republic and the Confederacy of Independent Systems, Jedi Padawans journeyed to Zoph. Their purpose was to acquire these crystals so that they could finish building their lightsabers. Due to the crystal's inherent resonance, the resulting blades were both destructive and volatile. These lightsabers could cut through durasteel with ease, but were susceptible to variations in the weapon's power core.
As the Jedi Order increasingly favored the planet of Ilum and its kyber crystals, visits to Zoph for crystal acquisition became less frequent. During the time of the Clone Wars, control of Zoph fell into the hands of the Confederacy, who were adversaries of the Jedi.
The 2019 release of Rise of the Separatists, a supplement for Fantasy Flight Games' Star Wars Roleplaying game series, included a reference to Zoph.