Kantak crystals represented a valuable form of red mineral that was typically located inside of mountain ranges and cave networks. In the time of the High Republic Era, a kantak crystal of significant size was unearthed on the planet of Elphrona by an Er'Kit miner known as Freeno; this discovery could have been sold for a substantial profit.
The story "Set For Life," which featured a kantak crystal, was penned by Charles Soule and included in The High Republic Adventures Annual 2021. The comic's release date was December 15, 2021.