Domeykite is a rare copper arsenide mineral that is primarily found in Chile. It is often used as an indicator mineral for other copper-rich minerals in mining exploration. While there are no direct synonyms for the word domeykite, other related minerals include molybdenite, bornite, and chalcocite. These minerals are all copper sulfides, but have different crystal structures and chemical compositions. Other minerals that may be associated with domeykite include enargite, tennantite, and tetrahedrite. It is important for geologists and mineral collectors to be familiar with these related minerals in order to accurately identify and categorize domeykite specimens.