Learn how the eruption of Mount Vesuvius in AD 79 transformed one unfortunate Herculaneum resident’s brain into organic glass.

Sometimes, water spawns near lava pools and flows over them during world generation, turning the lava into obsidian. Obsidian blocks can be mined only by a diamond or netherite pickaxe.

A river of lava is flowing from the Cumbre Vieja volcano on Spain's La Palma island after the north side of the crater collapsed. It's pouring into the ocean and expanding the coastline as it cools.