Obsidian — Minecraft block

Obsidian

Obsidian is the legendary purple-black blast-resistant block formed when water meets lava — the gateway to the Nether.

Block ID minecraft:obsidian
Mod Vanilla
Game versions
1.21

Description

Obsidian forms when a flowing water source touches a still lava source — a chemistry classic that every Survival player learns at the diamond stage. The block is famous for two reasons: its iconic purple-black texture flecked with violet highlights, and its near-invincibility. With a blast resistance of 1200, only a Wither's blue skull and Ender Dragon attacks can damage it; even maximum-power TNT chains leave it intact.

A diamond pickaxe is the minimum required tool — anything weaker fails to break the block at all. Mining one piece is slow even with the best gear, taking around nine seconds per block without Efficiency. Obsidian's primary use is the Nether portal frame, a 4×5 minimum rectangle ignited with flint and steel that opens a stable connection to the Nether. Other recipes include the Ender Chest, the enchanting table, the beacon stand, and the crying obsidian variant for respawn anchors.

Used in crafts

  • Ender Chest
  • Beacon
  • Enchanting Table