Tuff

Tuff is also a game feature of Minecraft.
More information can be found on the Minecraft Wiki

Tuff is an ornamental rock block, formed from volcanic ash, occurring in underground ore blobs.

For additional information, please refer to the corresponding item in Vanilla Minecraft.

Obtaining

Tuff can be mined using a pickaxe. If mined without a pickaxe, it drops nothing.

Usage

Tuff is primarily used as a building block or can be traded for Common Repair Powder at Miner Steve or for Gold Coins at the Stone Golem.