Block of Coal
minecraft:coal_blockBlock of coal is a storage block crafted from nine regular coal arranged in a 3x3 grid, compacting nine coal into a single inventory slot. It cannot be crafted from charcoal, only mined coal. As furnace fuel it burns for 800 seconds, smelting 80 items — ten times longer than a single coal and about 11% more efficient than burning nine coal individually — though it cannot fuel a minecart with furnace.
FAQ
How do I craft a block of coal?
Arrange nine regular coal in a 3x3 crafting grid; charcoal cannot be used as a substitute.
How long does a block of coal burn as furnace fuel?
It burns for 800 seconds, enough to smelt 80 items, which is ten times longer than a single piece of coal.
Is a block of coal more efficient than using nine separate coal?
Yes, it is about 11.11% more fuel-efficient than burning nine individual coal items, in addition to saving inventory space.
Can I use a block of coal to power a furnace minecart?
No, blocks of coal cannot be used as fuel for the minecart with furnace.