Zinc
From Tardis Wiki, the free Doctor Who reference
Zinc was an element and a metal.
Among the items stolen by bandits from Adrasta's palace was a zinc candlestick. Torvin took particular pride in this item. (TV: The Creature from the Pit)
The metal used in Vondraxian orbs shared properties with zinc and titanium, but was neither. (PROSE: Trace Memory)
