July 29, 2014 -
Many of these are similar to those found on planets such as silicates and oxides. However, the interiors of some asteroids are chemically distinct from the planets and many minerals are found only in meteorites (fragments of asteroids that land on Earth). In addition, carbonaceous asteroids contain a wide range of organic molecules such as amino acids. These minerals and chemicals formed very early in the history of our solar system – either through condensation in the protoplanetary disk or during geologic processing in the asteroid interior. Today most asteroids are cold and inert. On occasion, two asteroids will collide in a violent collision – providing energy for chemical reactions and creating new minerals and compounds.