Wool

Wool is a block derived from sheep that can be dyed 16 different colors. Wool blocks are weak, flammable, and do not offer much resistance against explosions.

As of the Beta 1.2 update, white, light gray, gray, and black wool can be obtained naturally by shearing sheep. White wool can also be created by combining 9 pieces of string together, although harvesting wool from sheep is considered a better use of the player's time. Swords can accelerate the collection of wool, but sheep can easily be sheared without the use of tools.

History
Wool was added for the creation of paintings, carpeting, rainbows, colorful structures, and in-game pixel art. Wool is also a suitable material for docks, as wool blocks will stop boats and absorb some impact from the collisions in a manner similar to Soul Sand.

In Creative Classic mode, wool blocks were known as cloth blocks that came in a set of 16 colours, although the palette was slightly different from the one available in Beta. Three shades of gray were added in Classic 0.0.20a.

Except for white cloth, colored cloth blocks were unobtainable during Classic's Survival Test and Indev unless they were pre-placed into the map file. They were completely removed from the code in Infdev. Placing these blocks on the map would cause the game client to crash, since the blocks no longer existed.

When colored wool was introduced again in Beta 1.2, cloth blocks were renamed wool blocks.

Data Values for Colored Wool
Different colors of wool can also be obtained by adjusting the "damage" values in the inventory. * Turns to white wool when placed

Trivia

 * Before leather was added, wool was used to craft leather armor.
 * When destroying wool, white wool debris is seen despite what color the dyed wool is. (Possible bug? Or not implemented?)

Stoff