Wiktionary
mooihoekite
n. (context mineralogy English) A tetragonal-scalenohedral mineral containing copper, iron, and sulfur.
Wikipedia
Mooihoekite
Mooihoekite is a copper iron sulfide mineral with chemical formula of CuFeS. The mineral was discovered in 1972 and received its name from its discovery area, the Mooihoek mine in Transvaal, South Africa.