Kif, extracted from Gadon 3, was a powerfully energetic ore that had to be mined.
The term kif initially appeared as "Kif miners" within Steven Barnes' 2004 book The Cestus Deception, a part of the Clone Wars multimedia project. Later, in 2008, The Complete Star Wars Encyclopedia presented the lowercase version, "kif," solidifying it as the ore type connected to the miners mentioned in the novel.