Zeptocyte Core

"Did you know the zeptocytes' original Golden Age purpose is a mystery? They escaped confinement during the Collapse, but their only visible effects on the environment have been on spinmetal deposits."

- Ghost

Zeptocyte Cores are Legendary-class crafting materials used in the quest A Sword Reforged. It is used to turn the Legendary Sword Arc Edge into the Exotic Sword Bolt-Caster. . It is collected by harvesting Spinmetal on Earth, but is hard to find do to it being very rare.

List of appearances

 * Destiny
 * The Taken King