
Quick tip: In "Minecraft: Java Edition," you can see what layer you're on by tapping F3 and checking your XYZ coordinates. Obsidian is hard to break, but easy to make. If you don't have easy access to lava, dig until you reach layer 11 in the Overworld, or layer 31 in the Nether. You can create obsidian yourself by pouring water from a bucket into lava.

Before you do this, note that you'll need a diamond or netherite pickaxe - other tools will just break the obsidian and leave you with nothing. The best way to find obsidian is to mine it out of the ground. And unlike other rare ores like diamonds, you can't trade with villagers to get it.

Next, you'll need to mine or acquire at least three blocks of obsidian. Once you craft a furnace with basic materials, you'll be able to turn raw materials like sand into higher-level goods like glass. Put them in the furnace with any type of fuel to create glass.

Mine at least five blocks of sand and take them to a furnace.
