Sulphurous Sand

Sulphurous Sand is a Pre-Hardmode block that composes most of the Sulphurous Sea biome, which spawns upon world generation. It will leak water over time and is used to craft Seafood and the Ballistic Poison Bomb at a Hardmode Anvil. It requires at least a Platinum Pickaxe or a Gold Pickaxe to mine. It is also dropped by Aquatic Scourge.

When underwater, bubbles are released that cannot harm the player until they reach maximum size. When they do, they deal 20 damage and inflict Venom for 2 seconds.