What is another word for pyrrhotine?
Pronunciation: [pˈɪrhətˌiːn] (IPA) 
Pyrrhotine is a mineral with a chemical composition of FeS. It is also known as troilite, which is a synonym for pyrrhotine. Other synonyms for pyrrhotine are pyrrhotite, magnetic pyrite, and magnetic sulfide. Pyrrhotite is a common iron sulfide mineral that often occurs as bronze-colored masses or as an alteration product of other sulfide minerals. Magnetic pyrite refers to a variety of pyrite that exhibits a strong magnetic response due to its high iron content. Pyrrhotine is commonly found in hydrothermal veins, as well as in metamorphic and igneous rocks. Its magnetic properties make it useful in various industrial applications, including as an ingredient in magnets and in the production of stainless steel.
