Cobblestone

Cobblestone is a darker block, often looking like a roughly paved area. This block only occurs naturally in dungeons, or when water and flowing lava come into contact. It makes great walls for constructions such as castles, towers and roads. Cobblestone is obtained by mining stone. Cobblestone is slightly harder to mine than normal stone, and there is an alternative version of the block known as Moss Stone, which can only be obtained from dungeons.

Current Uses
Cobblestone is required to craft furnaces, Cobblestone Slabs, stone stairs, stone tools and weapons, levers, Pistons and dispensers. Because of the abundance of stone, cobblestone is a commonly-used building material.

Cobblestone can be smelted back into smooth stone in a furnace.

History
Cobblestone was one of the first ever blocks as seen in very early Minecraft footage, when the game was just a clone of Infiniminer, called "Cave Game". Its textures are from one of Notch's previous games called RubyDung. Cobblestone was removed in 0.0.19a, but returned in 0.0.20a. It was removed due to lack of room in the UI. Because of its dark color it was often used in pixel art to represent darker colors until other, darker blocks like black wool and obsidian appeared.

Cobblestone started out with this texture which looks very similar to the Pre-Beta 1.7 one, but with less detail. In Minecraft 1.7 the texture was changed from this, to the current which is lighter and a little smoother.

Trivia

 * Cobblestone is created when water försöker att flyta in i ett block som redan upptas av flödande lava
 * När vatten flyter in i lavans källa, blir det opsidian istället.
 * Cobblestone är resistent mot Ghast eldkulor vilket gör det användbart för att skydda portaler.
 * Framtill släppandet av Minecraft Beta 1.3 användes cobblestone till att göra stone slabs.
 * Cobblestone bildar väggarna och tillsammans med Moss Stone, golvet i dungeons.
 * I och med 1.7 Beta uppdateringen har texturen på cobblestone blivit ljusare.