Zirconium

Zirconium is a material and an element added by various mods.

Vanilla
on the Minecraft Wiki

NuclearCraft
In NuclearCraft, Zirconium Dust is obtained alongside Nether Quartz when breaking Nether Quartz Ore or by crushing Diorite in a Rock Crusher. In its ingot form, Zirconium is used in the crafting of NuclearCraft machines.