Lava is an environmental block that does high damage to the player on contact and over time. It is red in color and is found in many biomes as pools of liquid. Raising your Survival Skill level will reduce the damage taken, and raising the Stamina Skill increases the contact time before dying. To protect yourself completely from lava damage, you can use an Exo Skin.
How to Obtain
Usable lava can only be obtained from lava pools by using the "drain" command with an onyx butler bot.
Sometimes you can find lava mushrooms near pools of lava. You can use the "dump" command with an onyx butler bot to dump collected lava to create protective moats around structures, death traps, or decorative structures.
Lava was originally called magma, and is still listed as such in the game code and in inventory.