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What are CAIs?

CAIs. Calcium aluminum inclusions. What’s so special about them and why do we talk about them so much? Well, many people talk …

chondrite classification

From the chondrite information page, the petrographic classification scheme works kind of like this: completely altered by water into clay (no known …

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Australite, Tektite

At 6.1 grams, this is one of the larger complete examples I have seen.  It exhibits wonderful contraction cracking and a very …

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Arispe, Mexico

Here are some photos from a 2003 expedition to Arispe.  Unfortunately, we didn’t find any meteorites, but it was a memorable trip …

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Bediasite, Tektite

This bediasite was reportedly found several decades ago, and it tips the scale at 49.2 grams.  It comes via Mr. and Mrs. …

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Bilanga, Diogenite

The Bilanga diogenite fell on October 27, 1999 amongst and between the villages of Bilanga-Yanga and Gomposago, in Burkina-Faso.  The fall was …

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Blythe Intaglios

These rare geoglyphs were carved into the desert pavement along the Colorado River a mere twenty minutes from what is now the city of Blythe, …