IntermediateFarms
How to build an iron farm in Minecraft (26.x)
a Cobblestone Slab in the bottom half, directly above the hopper (the zombie stands on it).
×1 Tested 26.3 Block
Cobblestone Slab block in Minecraft
The Cobblestone Slab is rough cobblestone cut into a slab. Its material is Cobblestone, so it keeps that block's look and toughness. All slabs, stairs and walls work alike, as the Stone Slab, Stone Stairs and Cobblestone Wall pages explain; the Cobblestone page covers the material.
It is made with the Crafting Table from 3 × Cobblestone (other recipes also exist). It is mined with a pickaxe.
How to craft
1 / 3
Crafting table 
6 3 × Cobblestone → 6 × Cobblestone Slab
// Slots with several items cycle through every accepted option.
Tutorials with Cobblestone Slab (1)
×1 Tested 26.3 Block states
| type | top · bottom · double |
|---|---|
| waterlogged | true · false |
Tags
#minecraft:blocks_dolphin_jump#minecraft:blocks_fluid_flow#minecraft:blocks_lava_fire_spread#minecraft:blocks_motion#minecraft:blocks_motion_in_heightmap#minecraft:blocks_motion_in_heightmap_no_leaves#minecraft:blocks_motion_no_leaves#minecraft:causes_suffocation#minecraft:entities_can_teleport_to#minecraft:ice_melts_when_destroyed_above#minecraft:mineable/pickaxe#minecraft:slabs
Cobblestone Slab · FAQ
How do you get Cobblestone Slab in Minecraft?
At the Crafting Table: 3 × Cobblestone give 6 × Cobblestone Slab. At the Stonecutter: 1 × Cobblestone gives 2 × Cobblestone Slab. Mining the block drops it.
What is Cobblestone Slab used for in Minecraft?
It is a building shape of Cobblestone, used for floors, roofs, steps and low walls.
What tool do you need to mine Cobblestone Slab?
The fastest tool is the pickaxe.
Is the Stonecutter cheaper for Cobblestone Slab?
No difference: the Stonecutter turns 1 × Cobblestone into 2 × Cobblestone Slab, the same rate as the crafting recipe (3 × Cobblestone for 6).
What sound does a note block make on Cobblestone Slab?
Placed under a Note Block, Cobblestone Slab gives the Bass drum sound.