What is another word for blister copper?
Pronunciation: [blˈɪstə kˈɒpə] (IPA) 
Blister copper refers to a form of copper that is usually produced when copper sulfides are smelted. This type of copper is characterized by its bubbly or blistered appearance on its surface, hence the name. However, there are other terms that can be used to refer to blister copper within the mining and metallurgical industries. Some of these synonyms include black copper, coarse copper, impure copper, or raw copper. These terms usually reflect different stages of the refining process or the purity level of the copper. Despite the different names, they all describe a form of copper with a high sulfur content and impurities that still need to be removed before they can be used for various applications.
