Blocks of Coal was a block that was added in TU19. It is used for compact storage of coal. It can be used in both creative and survival modes. Compared to other storage blocks, it is relatively cheap to make. It burns for 800 seconds, as long as 10 pieces of coal, making it a good fuel source.
You need 9 Coal to craft one.
- It cannot be crafted with charcoal, despite beliefs.
Either to store coal or to smelt up to 90 items.