Aldama (a), IIIAB

Meteoritical Bulletin entry for Aldama (a). This iron’s medium-octahedral structure has been partly recrystallized by natural or artificial heating, followed by rapid …

Aba Panu, L3.6-6

In the afternoon of April 19, 2018, a flash of light and deafening roar startled the residents of Southwestern Nigeria.  There were …

Aiquile, H5

On November 20, 2016, a bright daytime fireball split the sky above Aiquile, Bolivia.  A local named Hugo Cardona quickly snagged a …

What are CAIs?

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

chondrite classification

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

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 …

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 …