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C.6.2.3.1.  Johnstown meteorite hero.jpg

Johnstown

Johnstown

  • Exhibition Text

    • Buried by Crystals

      Diogenites are made of molten rock that was trapped beneath Vesta's surface. As a result, they cooled much more slowly than the eucrites, so their crystals had more time to grow.

      This photo of a diogenite is magnified 40 times—exactly the same amount as the eucrite. The eucrite's smaller crystals indicate that it hardened closer to Vesta's surface.

      Show more
  • Collection Information

    • JOHNSTOWN

      Fell July 6, 1924 Weld County, Colorado, USA

      DIO

      AMNH 2494

  • For Educators

    • Topic: Earth Science

      Subtopic: Meteorites

      Keywords: Astrogeology, Astrophysics, Magmas, Meteorites, Vesta (Asteroid)

      Audience: General

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