Minecraft:Java Edition 21w08a

21w08a is the eleventh Minecraft:snapshot for Minecraft:Java Edition 1.17, released on February 24, 2021,<ref>Template:Snap</ref> which renames grimstone to Minecraft:deepslate, adds deepslate ores, and makes changes to cave generation.

Additions

Blocks

File:Cobbled Deepslate JE1.png Minecraft:Cobbled deepslate

• Drops from Minecraft:deepslate when mined with a pickaxe without Minecraft:Silk Touch.
• Functions identically to Minecraft:cobblestone and Minecraft:blackstone in that it can be used to craft basic tools, furnaces, and brewing stands.
• Is used to craft all the deepslate variant blocks instead of regular deepslate.
• Renamed regular deepslate stairs, slabs and walls to cobbled variants.

Template:Animate Deepslate ores

• Added deepslate variants of diamond, iron, gold, lapis lazuli, and redstone ores.
• Take twice as long to mine as normal ores.
• Have the texture of Minecraft:deepslate replacing the normal stone texture.
• Take place of ores that generate in deepslate.
  • Normal stone ores may still generate deep underground if they replace a different block, such as Minecraft:tuff.
• Can be used in blasting and smelting recipes like normal ores.
  • These recipes can be unlocked in the recipe book with deepslate ores as well.

File:Smooth Basalt JE1 BE1.png Minecraft:Smooth basalt

• Generates in place of the tuff layer on Minecraft:amethyst geodes.
• Can be obtained by smelting Minecraft:basalt.

World generation

Minecraft:Crack carvers

• Deep, long cracks in the ground that are thinner and straighter than Minecraft:canyons.<ref>Template:Tweet</ref>
• Can reach over 90 blocks in depth.
• They are very similar to canyons Template:In.

General

Minecraft:Tags

• Added the deepslate_ore_replaceables block tag.
  • Contains deepslate.
• Added the Template:Cd block and item tags.
  • Contain the normal and deepslate variants of each ore type.
• Added the stone_ore_replaceables block tag.
  • Contains stone, granite, diorite, andesite, and tuff.

Changes

Blocks

Minecraft:Blackstone, Minecraft:deepslate, Minecraft:polished deepslate, Minecraft:chiseled deepslate, Minecraft:deepslate bricks, Minecraft:deepslate tiles and Minecraft:stair, Minecraft:slab and Minecraft:wall variants

• Textures have been tweaked slightly.

Minecraft:Gold ore

• Tweaked texture.
• Is now once again unique from Minecraft:nether gold ore.

Minecraft:Coal ore, Minecraft:copper ore, Minecraft:emerald ore, Minecraft:iron ore, Minecraft:lapis lazuli ore, Minecraft:redstone ore

• Tweaked texture.

Minecraft:Deepslate

• Renamed from "Grimstone".
• Is no longer used to craft or repair any blocks or items.
• Has new unique breaking, placing, and footstep sounds.
• Can only be mined with a Minecraft:Silk Touch pickaxe.

Minecraft:Lava

• Now replaces air below Y=-55.

Minecraft:Spore blossoms

• Particles now appear in the air around the block.

World generation

Minecraft:Amethyst geodes

• Can no longer generate fully in midair.
• The tuff layer has been replaced with smooth basalt.

Minecraft:Andesite

• No longer generates below Y=0.

Minecraft:Caves

• Tweaked cave sizes.<ref>Template:Tweet</ref>
• Minecraft:Ravines and regular cave carvers now generate below Y=0.
• Added more variation to carvers.<ref>Template:Tweet</ref>
• Caves are now more filled with water.

Minecraft:Glow lichen

• Generates almost twice as often.<ref>https://youtu.be/f6o1Bz0cwdI?t=225</ref>

Minecraft:Lava

• Once again generates at the bottom of the world starting at Y=-54.
• Lava springs can now generate below Y=0.

Minecraft:Water

• Water springs can now generate below Y=0.

File:21w08a approximate ore distribution.jpg

Ore distribution changes.

Minecraft:Mineral distribution

• Ore distribution has been changed again.
  • Iron now generates below Y=0, but in smaller blobs and not as frequently.
    • This was determined to be a bug, which was fixed in snapshot Minecraft:21w08b.
  • Gold is a little more common, but with 50% of blocks exposed to air skipped.
  • Diamond is the same, but with 50% blocks exposed to air skipped as well.
  • Increased frequency of buried lapis.
  • Copper is now less common.

Minecraft:Mineshafts

• Now generate again in the open air in caves.
• No longer appear floating.

Minecraft:Tuff

• Now generates in Minecraft:ore blobs below Y=0.

General

File:Redstone tab 21w08a.png

Slime and honey blocks in the "Redstone" tab.

Minecraft:Creative inventory

• Minecraft:Slime blocks and Minecraft:honey blocks have been moved to the "Redstone" tab.
  • The categories of the recipes for these blocks in the Minecraft:recipe book have moved as well.
• Minecraft:Lectern position within the "Redstone" tab has been moved out of the "essential" group.

Minecraft:Tags

• Added tuff to the base_stone_overworld block tag.
• Added deepslate gold ore to the gold_ores block and item tags.