Kotturuh crystal

Kotturuh crystals were found on the planet Mordeela. The power from within the crystals gave the Kotturuh the power to deliver the gift of death to other species. (PROSE: The Knight, the Fool and the Dead)

Inyit told the Ninth Doctor and Ikalla that the crystals were so powerful that the Kotturuh had to deliver death or the power of the crystals could potentially destroy all life in the universe. (PROSE: All Flesh is Grass) A Kotturuh crystal could be found in the Verbier Museum of the Impossible. (PROSE: Canaries) The Dalek Prime Strategist of the Restoration Empire had integrated the last remaining Kotturuh crystals in his possession into his unit to power a temporal shift from the Time Vortex to the Time War. (PROSE: Exit Strategy)