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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 …

2008-10-23-Detour

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about us

We started collecting meteorites in the summer of 1998. Within a few years, we came to notice an event that kept recurring: …

unequilibrated chondrite

chondrites

Chondrites are the most primitive group of meteorites.  They have formation ages dating to at least 4.56 billion years before the present, …

irons

irons

Iron meteorites, with few exceptions, represent fragments from the cores of large differentiated bodies (for an explanation of differentiation, see the “achondrites” …

achondrites

achondrites

Achondrites are a very diverse goup of meteorites representing a wide range of developmental processes in the solar system.  Some have crystallization …

stony-irons

stony-irons

Stony-iron meteorites are divided into two semi-related groups: mesosiderites and pallasites. Mesosiderites are a somewhat enigmatic group of generally metal-rich meteorites that have an origin that …

expeditions

hunting for meteorites

Hunting for meteorites is a fun hobby in which nearly anyone can take part.  One should familiarize oneself with terrestrial rocks first, …