Center for Meteorite Studies

To welcome this year’s incoming ASU freshmen, the Center for Meteorite Studies has partnered with the School of Earth and Space Exploration to dedicate a meteorite to the Class of 2020.

The Class of 2020's meteorite is actually a collection of spheres cut from the Gibeon iron meteorite.  Gibeon was found in Namibia, in 1836, and belongs to the IVA group of iron meteorites. Iron meteorites likely originated in the cores of large asteroids. They are composed almost entirely of nickel-iron alloy, which is also a primary component of the Earth's core.  The Widmanstätten pattern in iron meteorites reflects the solid-state diffusion of nickel during cooling, and is a three-dimensional pattern ordered on the faces of an octahedron. While this pattern is usually viewed on cut, polished, and etched flat pieces of iron meteorites, the form of the pattern depends on the orientation of the cut meteorite surface relative to the 3D ordered structure.

According to Center Research Professor and Collection Curator Laurence Garvie, "these iron meteorite spheres provide a unique opportunity to easily see the Widmanstätten pattern in three dimensions – they're an excellent teaching tool."

Gibeon meteorite spheresThe full 3D complexity of the Widmanstätten structure is visible on the surface of a sphere cut from an iron meteorite, as shown in this image of a Gibeon sphere. Photo ⓒ ASU/CMS.

With over 40,000 individual specimens representing more than 2,000 distinct meteorite falls and finds, the Center for Meteorite Studies is home to the world's largest university-based meteorite collection.  The collection is actively used for geological, planetary, and space science research throughout the world, and the Center's Meteorite Gallery, located on the second floor of ISTB4, is open to the public for self-guided tours Monday through Friday, from 9AM to 5PM, excluding ASU holidays.


Category: CMS News

Comments are closed.

Sign Up for Center Updates!

Be the first to learn about CMS events and news; sign up for email updates here!


Facebook
Twitter
YouTube


Upcoming Events

January 2017
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
December 25, 2016 December 26, 2016 December 27, 2016 December 28, 2016 December 29, 2016 December 30, 2016 December 31, 2016
January 1, 2017 January 2, 2017 January 3, 2017 January 4, 2017 January 5, 2017 January 6, 2017 January 7, 2017
January 8, 2017 January 9, 2017 January 10, 2017 January 11, 2017 January 12, 2017 January 13, 2017 January 14, 2017
January 15, 2017 January 16, 2017 January 17, 2017 January 18, 2017 January 19, 2017 January 20, 2017 January 21, 2017
January 22, 2017 January 23, 2017 January 24, 2017 January 25, 2017 January 26, 2017 January 27, 2017 January 28, 2017
January 29, 2017 January 30, 2017 January 31, 2017 February 1, 2017 February 2, 2017 February 3, 2017 February 4, 2017

Frequently Asked Questions

Click here to find the answers to the most common questions asked of the Center for Meteorite Studies!


Meteorite of the Month

Lost City

January’s meteorite of the month is Lost City, an (H5) ordinary chondrite that fell in Oklahoma, USA, January 3, 1970, at 8:14 PM.   The many witnesses described the associated …


CMS News

Catch up on all the latest news from the Center for Meteorite Studies!