Stonecutter

Stonecutter is a block used to craft stone related items, but $$ it is unused and can only be used as a decoration.

Natural generation
Stonecutters can generate inside mason houses in villages.

New Nintendo 3DS Edition
Stonecutters are only available from the creative inventory.

Usage
The stonecutter can be used as an alternative to the crafting table to craft most stone related blocks. All of its recipes only require one ingredient.

Nether brick fences cannot be made from stonecutter.

Changing profession
If a village has a stonecutter and there is no stone mason villager, any nearby villager who has not yet chosen a workstation has a chance to change their profession to a stone mason.

Trivia

 * The stonecutter was originally added to Pocket Edition due to a lack of space in the MATTIS crafting screen, prior to the redesign in Alpha 0.9.0.
 * The stonecutter has never been usable in New Nintendo 3DS Edition, as its first version was based on Pocket Edition Alpha 0.15.4, two major releases after the stonecutter's functionality had been removed.