BeginnerExploration
Where to find diamonds in Minecraft: the best Y level
Below Y 0, the underground is Deepslate (stone and deepslate mix between Y 0 and Y 8), so most of your finds will be Deepslate Diamond Ore.
Tested 26.3
Block
Deepslate block in Minecraft
Deepslate is the dark stone that replaces ordinary stone in the lowest layers of the Overworld, down to the bedrock. It is twice as hard as stone, so mining through it takes longer.
It is obtained in the Furnace from Cobbled Deepslate. It is mined with a pickaxe and drops Cobbled Deepslate.
What it does
Mined with a pickaxe, deepslate drops Cobbled Deepslate; only Silk Touch keeps the block itself, and smelting cobbled deepslate gives it back. Like a log, it has a direction: it lies along the axis of the face you place it on.
Ores in this layer have deepslate versions, such as deepslate diamond ore and deepslate iron ore. They hold the same resources but are slower to break. Ancient cities are built out of the deepslate family, and infested deepslate can hide a silverfish.
With a Stonecutter or the crafting table, deepslate and its cobbled form lead to Polished Deepslate, deepslate bricks, tiles and chiseled deepslate, a dark palette popular for modern and gothic builds.
How to craft
Furnace 
Cobbled Deepslate → Deepslate
// Slots with several items cycle through every accepted option.
How Deepslate connects
6 links · from the 26.3 game dataIn structures
share of blocks
Tutorials with Deepslate (3)
BeginnerExploration
Minecraft ore distribution: the best Y level for every ore
Sea level is Y 63, Bedrock covers Y -64 to -60, and Deepslate replaces Stone below Y 0.
Tested 26.3
IntermediateSurvival
Beacon in Minecraft: build the pyramid and pick the right power
Stone and deepslate break much faster.
Tested 26.3
Used to craft (17)
Chiseled DeepslateCobbled Deepslate
Cobbled Deepslate Slab
Cobbled Deepslate Stairs
Cobbled Deepslate Wall
Deepslate Brick Slab
Deepslate Brick Stairs
Deepslate Brick Wall
Deepslate Bricks
Deepslate Tile Slab
Deepslate Tile Stairs
Deepslate Tile Wall
Deepslate Tiles
Polished Deepslate
Polished Deepslate Slab
Polished Deepslate Stairs
Polished Deepslate Wall Drops when broken
Cobbled Deepslate Obtained from
Block states
| axis | x · y · z |
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Tags
#minecraft:ancient_city_replaceable#minecraft:azalea_root_replaceable#minecraft:base_stone_overworld#minecraft:bats_spawnable_on#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:deepslate_ore_replaceables#minecraft:dripstone_replaceable_blocks#minecraft:entities_can_teleport_to#minecraft:forest_rock_can_place_on#minecraft:ice_melts_when_destroyed_above#minecraft:lush_ground_replaceable#minecraft:mineable/pickaxe#minecraft:moss_replaceable#minecraft:sculk_replaceable#minecraft:sculk_replaceable_world_gen#minecraft:sulfur_cube_swallowable
Deepslate · FAQ
How do you get Deepslate in Minecraft?
In a Furnace: 1 × Cobbled Deepslate gives 1 × Deepslate. Mined with Silk Touch, the block drops itself; without it, it drops Cobbled Deepslate.
What is Deepslate used for in Minecraft?
It is the deep stone of the Overworld, drops cobbled deepslate and is the base of the deepslate building blocks. It is an ingredient in 17 recipes, made at the Stonecutter; for example Cobbled Deepslate Stairs, Cobbled Deepslate Wall, Deepslate Brick Slab, Deepslate Brick Stairs, Deepslate Brick Wall and 9 more.
What tool do you need to mine Deepslate?
The fastest tool is the pickaxe.
What sound does a note block make on Deepslate?
Placed under a Note Block, Deepslate gives the Bass drum sound.