Mantle xenolith

  • Exhibition Text

    • from San Carlos, Arizona

      Erupting basaltic lavas may carry fragments of peridotite from the mantle to the surface—most commonly the rocks lherzolite and pyroxenite. 

      Can you find the minerals in the lherzolite by their colors?
      Olivine is the pale green mineral, diopside is bottle-green and enstatite is brown-black.

      Can you find the pyroxenite?
      It is mostly composed of the brown-black mineral enstatite.

       

      AMNH collection

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  • For Educators

    • Topic: Earth Science

      Subtopic: Earth Structure

      Keywords: Lherzolite, Pyroxenite, Geology, Basalt, Minerals, Earth (Planet)--Mantle

      Audience: General