Native metal brass, bronze, pewter, German silver, osmiridium, electrum, white gold, and silver-mercury and gold-mercury amalgam. Only gold, silver, copper and the platinum metals occur in nature in large amounts. Over geological time scales, very few metals can resist natural weathering processes like oxidation, which is why generally only the less reactive metals such as gold and platinum are found as native metals. The others usually occur as isolated pockets where a natural chemical process reduces a common compound or ore of the metal, leaving the pure metal behind as small flakes or inclusions. Non-metallic elements occurring in the native state include
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