Tradeable Material

A Tradeable Material is an object that the Ministry of Magic allows the Wizarding world to trade in. There are several Classes of Tradeable Material, and each object is assigned to a Class depending on its value or nature. Materials in the classes are usually high value, or dangerous, and the trade in them is strictly regulated.

Known Class B Tradeable Materials

 * Erumpent Exploding Fluid
 * Erumpent horn
 * Erumpent tail
 * Romanian Longhorn horns.

Appearances

 * Fantastic Beasts and Where to Find Them