Tuff

Tuff is a porous volcanic rock, found as part of amethyst geodes or in mineral veins below y=0.

Breaking
Tuff drops as an item if mined by any pickaxe. If mined without a pickaxe, it drops nothing.

Natural generation
Tuff generates naturally as part of the outer layer of amethyst geodes, or in mineral veins below y=0.

Usage
Tuff is currently used only for decoration.

Issues
Toba Tuffstein Tuf Tufo Tuff Tuf Tufo Туф 凝灰岩