Abandoned Mineshaft

Abandoned Mineshafts are naturally generated structures that form underground, they were first added in update 0.9.0. Note: This list contains speculation.

Structure
Mineshafts are long winding maze-like mines, in of the structure of mines, you can find: Fences (For support beams) Wooden planks (For crossbars across support beams) and Cobwebs. Mineshafts begin with a very large dirt room, with an arched roof, and then they, have long tunnels 3*3 blocks in hight and width, with supports and crossbars approximatley every 4 blocks. Occasionally these can have torches spawning, or, have chests inside filled with goodies. Very commonly though, these will have rails along the floor, and many Cobwebs all over the place.

Items
Note: These are the Items for PC edition, it is unkown what will actually spawn in these chests, if the chests even spawn. Also, this list will also cover what things you can find in the walls and floors of the Shaft.
 * Diamonds
 * Coal
 * Lapis Lazuli
 * Redstone Ore
 * Emeralds
 * Iron Ingots
 * Gold Ingots
 * Melon seeds
 * Pumpkin seeds
 * Bread
 * Rails
 * Iron Pickaxes
 * Wooden Planks
 * Fences
 * Minecarts
 * Chests
 * Cobblestone
 * String (From Cobweb)
 * Dirt
 * Stone
 * Torch
 * Gravel
 * Cobwebs{| class="wikitable"
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What's in the chests
Box gotten from Minecraft Gamepedia.