Minecraft resource gathering/Obsidian

Obsidian is a block formed by flowing water coming into contact with lava. It can only be mined with a diamond or netherite pickaxe, and cannot be blown up by TNT.

Overworld
Obsidian occurs naturally in caves and ravines, when a waterfall comes into contact with lava. The player can create obsidian by pouring a bucket of water over the lava.

Obsidian generates as part of ruined portals, woodland mansions, and sometimes ocean ruins. It is also found in the chest loot for ruined portals and village weaponsmiths.

Obsidian is created when a player opens a nether portal from the Nether.

Nether
Obsidian generates as part of ruined portals, and in the chest loot for ruined portals, bastion remnants, and Nether fortresses.

Obsidian is created when a player opens a nether portal from the Overworld.

Piglins have a chance of bartering obsidian when given gold.

End
Obsidian generates as part of the pillars on the main End island, and in End cities.

Obsidian is created as part of the platform that generates when a player enters the End.

Usage
Obsidian has three main uses:
 * Explosion-proof structures
 * Nether portals
 * Enchanting tables