Obsidian
Block Stack: 64 Since Classic 0.28
Quick answer: Pour water over lava source blocks - the classic method.
How to get it
- Pour water over lava source blocks - the classic method
- Loot ruined portals and bastion chests
- Barter with piglins (chance per gold ingot)
- The End's obsidian pillars and platform regenerate - mine them
Uses
- Build nether portals (minimum 10 obsidian)
- Craft enchanting tables (4), beacons (3), ender chests (8) and end crystals
- Blast-proof building (1,200 blast resistance - creepers and TNT cannot break it)
Renewability
Yes - the End's obsidian platform regenerates whenever an entity enters the End, enabling farms
Java vs Bedrock
Identical in both editions: minable only with a diamond or netherite pickaxe (9.4s with diamond), immune to explosions, movable by pistons unlike bedrock. Crying obsidian (bartering/ruined portals) cannot build portals.
Related: DiamondNether StarGold Ingot