Mooihoekite to chalcopyrite CuFeS, making it helpful in the study of ore deposits and the study of the central portion of the Cu-Fe-S phase system. Mooihoekite, chalcopyrite, talnakhite, and haycockite all play key roles in the study of ore genesis and beneficiation. 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. Mooihoekite crystallizes in the tetragonal crystal system. It has a short optical c-axis that is perpendicular to two longer a-axes of equal length. For Mooihoekite,
Heavy Metal (Takin' a Ride) on the pop charts. On the Mainstream Rock chart, "Heavy Metal (Takin' a Ride)" peaked at number five. South Park based a sequence of their 2008 "Major Boobage" episode on the film, and included the song. Heavy Metal (Takin' a Ride) "Heavy Metal (Takin' a Ride)" is a song by Eagles guitarist Don Felder. It is the theme song of the animated film "Heavy Metal". It is not to be confused with the song of the same title by Sammy Hagar, also included on the same movie soundtrack. The B-side, "All of You," is also a track on the movie's