Polished Brain Fragment

 is a precious stone.

Obtaining

 * Dropped by
 * Polished Crackler

Uses

 * Used in the craft of
 * Billalo
 * Bow Liwood
 * Canni Blade
 * Day'inda Knife
 * Dark Treeckler Mask
 * Polished Ring
 * Red Hammer
 * Shovel Shattkitou