Grindstone

The Grindstone is a Block that was added in Update 1.9.

Obtaining
Grindstones can currently only be obtained in the creative inventory with the Experimental Gameplay toggle enabled. In Update 1.10, Grindstones will be able to be obtained by crafting them or finding them in Villages.

Crafting
2 Paper + 2 Wooden Planks = 1 Cartography

Usage
Grindstones currently have no functionality. In Update 1.11, they will be able to remove any Enchantments and restore the durability of an item, similar to an Anvil.

Trivia

 * The Grindstone seems to be able to be spun, but it can’t.