Cobblestone can be acquired by mining out Stone, which is generally found in caves. This block can only be placed by the player, with the exception of inside Dungeons which contain Spawners, where Cobblestone, along with its counterpart, Mossy Cobblestone, may be found. Cobblestone has the appearance of several pieces of rocks combined into a single block. Cobblestone can be smelted into Stone, the type of block it was originally. Four of the smelted Stone can then be crafted into Stone Brick. Cobblestone and Dirt are two of the most highly accessible blocks in the game. Cobblestone can be mined by any type of Pickaxe (Wooden Pickaxe, Stone Pickaxe, Iron Pickaxe, Diamond Pickaxe). Three Cobblestone and two sticks can be crafted into a Stone Pickaxe. Stone Pickaxes are able to mine Iron Ore as well as normal stone. Three Cobblestone and two sticks can be crafted into a Stone Pickaxe. One Cobblestone and two sticks are used to craft a Stone Shovel. Two Cobblestone and two sticks can be crafted into a Stone Hoe or a Stone Sword. Three Cobblestone and one Blaze Rod are used to craft a Brewing Stand. Eight pieces of Cobblestone are used to craft a Furnace. Three Cobblestone are used to craft six Stone Slabs. Six Cobblestone are used to craft four Cobblestone Stairs. Six Cobblestone are used to craft six Cobblestone Walls. One Stick and one Cobblestone are used to craft a lever. Four Cobblestone, three Wooden Planks, one Iron Ingot, and one Redstone are used to craft a Piston. Seven Cobblestone, one Bow, and one Redstone are used to craft a Dispenser. Hostile Mobs are able to spawn on Cobblestone.