Type Natural
Effects Unknown
Source Mine
Cost to buy 0 CopperCoin Small
Cost to sell 0 CopperCoin Small

Obsidian is a block that spawns where Lava is hit by Water, replacing the Lava. This is most commonly found Underground or in the Underworld.

Obsidian is not used for much aside from crafting the Obsidian Skull and Hellstone Bars.

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