The Chunk of Coralium is an item used to obtain Refined Coralium Ingots.
Materials used to craft the Chunk of Coralium is:
The Chunk of Coralium is used to smelt into Refined Coralium Ingots. In some versions of Abyssalcraft, they give 2 Refined Coralium Ingots instead of 1. In the Transmutator, it is capable of Transmutating 81 items, but this is considered to be a waste, as Buckets of Liquid Coralium Transmute 100 Items and can be considered a renewable resource.