Niobium

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

Vanilla
on the Minecraft Wiki

Niobium Ingot
The Niobium Ingot is an item added by Misty World.

Niobium Block
The Niobium Block is a block added by Misty World.

Niobium Nugget
The Niobium Nugget is an item added by Misty World.