Cup of Volcanic Sand

Information
The Cup of Volcanic Sand is light black in color, and uses the Sand material.

This sand can be found at the volcanic island, exactly where the volcano is. It matches the ash color of the volcano itself. Eating this type of sand will gain you 2 sandiness, which is the doubled amount of sandiness you gain by eating Cup of Sand.

This is the only cup that gains you 2 sandiness, which is the largest amount of sandiness you can get in the game.