For the similarly named ore, please see deuridium.
Duridium was a type of ore.
In 2371, the Xhosa hauled a load of duridium ore to Solais V. The ship was due to return to Deep Space 9 the following month. (DS9: "The Adversary")
In 2373, a Changeling posing as Doctor Julian Bashir claimed to Miles O'Brien that he had ordered two sets of new duridium alloy darts that he had told him about. (DS9: "By Inferno's Light")
Refined duridium was used in the construction of barrels, and was resistant to Jem'Hadar rifles. (DS9: "Blaze of Glory")
According to the script for "Blaze of Glory", the pronunciation for duridium was "dur-ID-ee-um".