Lava Bucket

A lava bucket is a bucket filled with lava.

Obtaining
To fill an empty bucket with lava, it on a lava source block, or, $$, lava in a cauldron. The block is consumed in the process. Flowing lava does not fill a bucket.

Lava is a finite resource. New lava source blocks cannot be created, unlike water source blocks, which can be created from two water source blocks horizontally adjacent to an air block.

Usage
A lava bucket can be used as an efficient fuel. It has the longest burning value of 1000 seconds, compared to 800 seconds for a coal block (a lava bucket smelts 100 items, and a coal block smelts 80). After smelting starts, the lava bucket turns into an empty bucket.

Lava buckets can be used to break Nether portal blocks by placing the lava on the side of a block next to the portal block.

Trading
$$, journeyman-level armorer villagers buy a lava bucket for one emerald as part of their trades.

$$, journeyman-level armorer villagers have a 40% chance of offering to buy a lava bucket for one emerald.

Cauldrons
$$, a lava bucket can be used to fill a cauldron with lava. The lava damages any entity standing inside the cauldron, unless the entity is immune to fire damage. Flowing water or waterlogging does not affect the lava in the cauldron.

ID
Java Edition:

Bedrock Edition:

Block data
In Bedrock Edition, buckets use data value to determine contents. Once used, each data value is set to 0 (Empty Bucket). If no data value is provided, data value is 0.

Issues
Balde de lava 岩浆桶

Trivia

 * One lava bucket has the highest number of smelts in the game at 100 items per bucket.
 * This makes it 12.5 times more efficient than coal and charcoal.