Crystal of Radiance

The Crystal of Radiance is a treasure in Pikmin: The Winds of Light, found in Adventure Cave. To get it, a leader must be thrown onto the ledge below the treasure, which can then be accessed by that leader throwing Pikmin up to it. It is actually a giant amethyst crystal. Collecting it grants access to the Spring of Serenity.

Olimar's journal

 * "This crystal seems to radiate a strange power... Apparently, the ship says it can use this power to travel to a new area."