Liquid Iron

Description
It's a dark-blue colored liquid, and it's also known as Molten Metal. It's a dangerous liquid because it can kill players very fast (12dmg/0.5s).

Location
It can be found on metal moons, but only on some sub-biomes. It's commonly found near the surface.

Molten rain creates liquid iron pools.

It may also be acquired by placing iron ore in an extractor, a blast furnace or arc furnace.