Smooth Stone is a Cobblestone block that goes through the smelting process twice. Therefore, to get Smooth Stone in Minecraft ...

So, if you want to build houses and other structures out of stone, then the smooth version is the way to go. You can also craft a blast furnace with smooth stone, so the block is practical, ...

At the crafting table ... which will give you Stone in a 1:1 ratio with cobblestone. Place the stone back into the furnace in the upper slot and it will yield you Smooth Stone with the same ...