Prismarine
Prismarine is a block in Minecraft. It can be crafted. It is used to craft other items.
Prismarine is an underwater stone found in ocean monuments and ocean ruins. It slowly shifts colors between shades of blue and green, giving it a unique animated texture.
It can be obtained by mining with a pickaxe, crafting from Prismarine shards, or through stonecutting. Prismarine is used in construction, crafting slabs, stairs, and walls, and activating conduits for underwater breathing effects. When placed under a note block, it produces a 'bass drum' sound.