|"There are plenty of eye-witness accounts. Just because you're so narrow-minded you need to have everything shoved under your nose before you–"
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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
- 'Fantastic Beasts and Where to Find Them (First appearance)