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How to Make Prismarine Brick Slab in Minecraft

Prismarine Brick Slab — Minecraft block

Prismarine Brick Slab

Prismarine Brick Slab is a half-height building block crafted from three prismarine bricks, yielding six cyan slabs per recipe for underwater-style floors and trim.

Block ID minecraft:prismarine_brick_slab
Mod Vanilla
Game versions
1.21

Description

Prismarine Brick Slab is a half-height decorative variant of prismarine bricks that never generates naturally, so players make every Prismarine Brick Slab at a crafting table or a stonecutter. A crafting table turns three prismarine bricks placed in a row into six slabs, and a stonecutter cuts one prismarine brick into two slabs. Prismarine Brick Slabs are renewable: guardians and elder guardians drop prismarine shards, and nine shards craft into one prismarine brick. A Prismarine Brick Slab has hardness 1.5, blast resistance 6, and the cyan chiseled-brick texture of the full blocks that build ocean monuments.

Builders use Prismarine Brick Slabs for thin cyan floors, wall trim, window sills, and smooth stair transitions; two identical slabs placed in the same block space combine into a full-height double slab. Any pickaxe mines a Prismarine Brick Slab, while mining without a pickaxe drops nothing at all. Prismarine Brick Slabs are not flammable and never catch fire from lava, so the cyan blocks pair safely with lava lighting in underwater bases.

Block properties

Item ID minecraft:prismarine_brick_slab
/give command /give @p minecraft:prismarine_brick_slab
Stackable Yes (64)
Best tool Pickaxe
Renewable Yes
Hardness 1.5
Blast resistance 6
Java Edition 1.13
Bedrock Edition 1.4.0

Guide

How to get Prismarine Brick Slabs in Minecraft

  1. 1

    Collect prismarine shards

    Guardians and elder guardians drop prismarine shards, so defeat the two mobs until nine shards are collected for every planned prismarine brick.

  2. 2

    Craft prismarine bricks

    Fill a 3×3 crafting grid with nine prismarine shards to make one prismarine brick; three bricks fund one full slab recipe.

  3. 3

    Craft the slabs

    Place three prismarine bricks in a single row on a crafting table, and the recipe yields six Prismarine Brick Slabs.

  4. 4

    Cut spare bricks on a stonecutter

    A stonecutter converts one prismarine brick into two Prismarine Brick Slabs at the same 1:2 rate as the crafting table, ideal when a single brick is left over.

  5. 5

    Recover slabs with any pickaxe

    Break placed Prismarine Brick Slabs with any pickaxe — a wooden pickaxe takes 1.15 seconds — because bare hands need 7.5 seconds and drop nothing.

Waterlogging tip

Prismarine Brick Slabs are waterloggable: a slab placed inside a water source holds the water within the block space, so aquarium floors and underwater halls keep their water.

How to craft this block

Ingredients: Prismarine Bricks Prismarine Bricks x3
Crafting
Prismarine Bricks Prismarine Bricks Prismarine Bricks
Prismarine Brick Slab
6
Prismarine Brick Slab

Related blocks

Frequently asked questions

How many Prismarine Brick Slabs fit in one stack?

Prismarine Brick Slabs stack up to 64 per inventory slot, matching full prismarine bricks.

When was the Prismarine Brick Slab added to Minecraft?

Java Edition received prismarine brick slabs in 1.13, and Bedrock Edition fully implemented the block in 1.4.0 after an experimental debut in 1.2.13.

Do Prismarine Brick Slabs generate in ocean monuments?

No. Ocean monuments are built from full prismarine bricks, and Prismarine Brick Slabs never generate naturally — crafting and stonecutting are the only sources.

Do two Prismarine Brick Slabs form a full block?

Two identical slabs placed in the same block space combine into a double slab of full block height, and Bedrock Edition plays a placement sound when the halves merge.

Are Prismarine Brick Slabs fireproof?

Prismarine Brick Slabs are not flammable and never catch fire from lava, so open lava poses no burning risk to cyan slab builds.