Stone

Stone (a.k.a Smooth Stone) is a naturally occurring block that, when mined, drops Cobblestone.

Obtaining
Stone is the most abundant block in the Overworld, and can be easily mined with any Pickaxe to drop Cobblestone which can be smelted to obtain a stone block. It can be directly acquired using a Silk Touch Enchantment.

Silverfish can enter stone, creating a Stone Monster Egg.

Crafting/Smelting

 * 1 Cobblestone + Any Fuel => 1 Stone (In Furnace)
 * 4 Stone => 4 Stone Bricks
 * 3 Stone => 6 Stone Slabs
 * 2 Stone => I Stone Pressure Plate
 * 1 Stone => I Stone Button

Trivia

 * Stone is renewable as Cobblestone is renewable as well.