Duranium is a metallic ore used in the construction of starship hulls.
In 2377, a survey team from the USS Ottawa identified a major duranium deposit on the planet Grecon IV in Cardassian territory. The Ottawa crew agreed that the deposit would be of significant importance to the Cardassian economy. (USS Baldwin: "Like the Rain")
External Link[]
- Duranium article at Memory Alpha, the canon Star Trek wiki.