Magma Block — Minecraft block

Magma Block

Magma Block burns players standing on it without fire-resistance gear and creates downward bubble columns underwater.

Block ID minecraft:magma_block
Mod Vanilla
Game versions
1.21

Description

Magma Block generates naturally as ore veins throughout the Nether — especially in basalt deltas — and in the Overworld at the bottom of underground water aquifers, where it forms the source of underwater bubble columns. The texture is dark grey with bright orange cracks suggesting glowing molten rock beneath a thin crust, and the block emits light at level three (a soft ambient glow rather than usable illumination).

Walking on the surface deals one heart of fire damage per second to any entity without fire resistance or Frost Walker boots — including the player; sneaking players take no damage at all. Combined with iron-door alcoves, Magma Block becomes a passive killing surface for mob farms: pipe enemies onto the block and let the burns finish them. Underwater, Magma Block still burns entities standing on it while generating a downward bubble column above, dragging entities (and items) toward the scorching floor — ideal for elevators that lower the player rather than lift them. Mining requires a wood-tier or higher pickaxe, and the block drops itself with any of them — Silk Touch is not required.

Block properties

Item ID minecraft:magma_block
/give command /give @p minecraft:magma_block
Stackable Yes (64)
Best tool Pickaxe
Renewable Yes
Hardness 0.5
Blast resistance 0.5
Light level 3
Java Edition 1.10
Bedrock Edition 1.1.3

Java & Bedrock Guide

How to use a Magma Block in Minecraft

  1. 1

    Craft or gather the block

    Place four magma cream in a 2x2 crafting grid to make one magma block, or mine it from the Nether with any pickaxe (it drops itself).

  2. 2

    Build a passive mob trap

    Set magma blocks on the floor of a mob farm; mobs walking on them take half a heart of fire damage repeatedly until they die.

  3. 3

    Make a downward water elevator

    Place a magma block at the bottom of a water column to create a downward bubble column that pulls players and items beneath the surface.

  4. 4

    Walk across safely

    Sneak while crossing, or wear Frost Walker boots, or drink a Fire Resistance potion to take no damage from the surface.

Important

Magma blocks deal no damage to fire-immune mobs such as blazes, magma cubes, and zombified piglins — a magma floor can never kill these mobs, no matter how long they stand on it.

How to craft this block

Ingredients: Magma Cream Magma Cream x4
Crafting
Magma Block
1
Magma Block

Frequently asked questions

How do you make a magma block?

Place four magma cream in a 2x2 crafting grid to make one magma block. Magma cream itself is crafted from a slimeball and blaze powder.

Does a magma block hurt you?

Yes. Standing on it deals about one heart of fire damage per second, but you take no damage while sneaking, wearing Frost Walker boots, or under Fire Resistance.

What does a magma block do underwater?

Underwater it generates a downward bubble column that pulls entities and items below the surface, which is used to build descending water elevators.

What tool mines a magma block?

Any pickaxe from wood tier upward mines it, and the block drops itself even without Silk Touch.

Is the magma block in both Java and Bedrock?

Yes. It was added in Java Edition 1.10 and is available in Bedrock Edition, with the same damage and bubble-column behavior.

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