September 2011

September 1997 Witnessed Fall: Worden, Michigan. A “Fender Bender” Meteorite

By | | Accretion Desk

An September 1997 Witnessed Fall: Worden, Michigan USA Worden: A Fender Bender Meteorite   For a five, Worden is filled with superb round chondrules. This 113g complete slice captures the essence of what was once a kilo and a half stone. Meteorites that land on cars deserve a special place in the subcategory of witnessed falls affectionately known as hammers.

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Ron Hartman – 1935-2011

By | | Bob's Findings

Ron Hartman – 1935-2011 Commemorating the life of our colleague, and my personal friend. The recent passing of Ron Hartman has prompted me to postpone this month’s article, and instead to make notice of this sad news. Due to my being out-of-town when I learned of his passing, and my inablility to access my computer files, this article will be

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Isheyevo

By | | Micro Visions

Right now Isheyevo is being called a CH/CBb and might not even be a chondrite in the usual sense of the term. It is a complex mix of components from different sources. For example, there are two distinct populations of CAIs. There are two sets of chondrule textures corresponding to two blended lithologies. And the phyllosilicates found as shells around

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