Obsidian is the deep-purple, near-indestructible block you need before you can open a Nether portal, build an enchanting table, or wall off a base from explosions. You can’t craft it on a crafting table. Instead, it forms when water touches a still lava source block, and only a diamond or netherite pickaxe can pull the finished block out of the ground.
Quick answer: Place water directly onto a stationary lava source block so the lava turns into obsidian, scoop the water back into your bucket, then mine the obsidian with a diamond or netherite pickaxe and pick up the dropped block.
What obsidian is and why it matters
Obsidian is one of the toughest blocks in the game. It has a blast resistance of 1,200, which means TNT, creeper blasts, and ghast fireballs cannot break it. Only the Wither’s blue skull projectiles and the Ender Dragon’s attacks can destroy it, and those methods do not drop the block. Pistons and sticky pistons also cannot push or pull it.
The block uses the ID minecraft:obsidian, stacks up to 64, and appears in the Natural Blocks tab of the Creative inventory on current versions. It exists on every modern edition, including Java, Bedrock, and Education Edition.
Make obsidian with water and lava
The reliable way to produce obsidian is to drop water onto a lava source block. The one rule that trips up new players is that flowing lava will not work. Flowing lava turns into cobblestone or stone, so you must hit a still source block.
The control to use a bucket and mine the block varies by platform, so use the table below.
| Platform | Use bucket | Mine block |
|---|---|---|
| Java / Windows / Education | Right-click | Left-click and hold |
| Pocket Edition | Tap | Tap and hold |
| Xbox | LT | RT (hold) |
| PlayStation | L2 | R2 (hold) |
| Switch / Wii U | ZL | ZR (hold) |
Mine obsidian with the right pickaxe
Obsidian only drops as an item if you mine it with diamond or stronger. Anything weaker breaks the block and gives you nothing. Hold the pickaxe and keep digging until the block finally breaks and a smaller obsidian item appears, then pick it up before it despawns.
| Tool | Mining time | Drops obsidian |
|---|---|---|
| Iron pickaxe or weaker | Cannot mine | No |
| Diamond pickaxe | ~9.4 seconds | Yes |
| Netherite pickaxe | ~8 seconds | Yes |
Tip: An Efficiency V enchantment on a diamond or netherite pickaxe cuts the dig time down to about a second, which makes large obsidian runs far less tedious.
Where obsidian appears naturally
You don’t always have to make obsidian from scratch. Water and lava sometimes meet on their own inside caves, leaving obsidian behind for you to mine.
Several structures also generate with obsidian already built in. Ruined portals are the most common find and appear in both the Overworld and the Nether.
| Location | What you get |
|---|---|
| Ruined Nether portals | Obsidian and crying obsidian in the frame |
| Woodland mansion secret room | 19 obsidian blocks plus a diamond block |
| Ocean ruins | Occasional obsidian blocks |
| End portal platform | 9 obsidian blocks on arrival |
| End obsidian pillars | 10 tall pillars that regenerate with the dragon |
The obsidian pillars on the End’s main island act as the closest thing to a renewable source. They respawn every time you bring back the Ender Dragon by placing four end crystals on the exit portal, so repeated dragon fights give an effectively unlimited supply.
Obsidian can also turn up as chest loot, and Piglins occasionally toss it to you during bartering.
| Source | Amount / chance |
|---|---|
| Bastion remnant chests | 4–6 blocks |
| Nether fortress chests | 2–4 blocks |
| Ruined portal chest | 1–2 blocks |
| Village weaponsmith chest | 3–7 blocks |
| Piglin bartering (gold ingot) | ~8.71% chance per trade |
Set up a steady supply with a lava generator
Because every obsidian block needs its own lava source, you can keep yourself stocked using a dripstone lava farm. This requires Minecraft Java Edition 1.17 or later.
Crying obsidian cannot be made
Crying obsidian is a separate variant, and the water-on-lava trick does not produce it. You can only collect it from ruined Nether portals, bastion remnant chests, or Piglin bartering. It can’t build a Nether portal, but it emits a light level of 10 and is the key ingredient in the Respawn Anchor, which lets you set a respawn point in the Nether.
What you can build with obsidian
Obsidian’s blast resistance makes it the go-to material for protecting bases and TNT-based farms, since explosions leave it untouched.
It is the frame block for a Nether portal, which needs at least 10 obsidian arranged as a rectangle four wide and five tall, lit with flint and steel. Corners can be left empty. Obsidian is also part of three important crafting recipes.
| Item | Obsidian needed | Other ingredients |
|---|---|---|
| Enchanting table | 4 | 2 diamonds, 1 book |
| Ender chest | 8 | 1 Eye of Ender |
| Beacon | 3 | 5 glass, 1 Nether Star |
The enchanting table lets you upgrade gear, and the ender chest shares one private inventory across every ender chest in your world. Beacons sit on top of a mineral pyramid and grant status effects across a wide area.
Once a block sits in your inventory after mining, the job is done. Keep a couple of spare pickaxes handy for big hauls, always have a water bucket ready to neutralize hidden lava, and you’ll never be short of obsidian for portals, enchanting, or a blast-proof vault.
