Polished Stone Fragment

 is a stone.

Obtaining

 * Dropped by
 * Plain Crackler

Uses

 * Used in the craft of
 * Crackler Dungeon Key
 * Dunb Hammer
 * Hammer Ingthaiphoons
 * Hammer O'In
 * Kape Axe
 * Legendary Crackler Belt
 * Legendary Crackler Cloak
 * Plain Crackler Amulet
 * Pog Hammer
 * Polpullet Hammer
 * Shika's Ears
 * Shovel Ijah
 * Stone Axe
 * The Metronome