
Astoria, IIIAB
This IIIAB from South Dakota isn’t quite official yet. The total known weight was ~24 kilograms. The ~2 kilogram end-cut that was taken …
This IIIAB from South Dakota isn’t quite official yet. The total known weight was ~24 kilograms. The ~2 kilogram end-cut that was taken …
From the chondrite information page, the petrographic classification scheme works kind of like this: completely altered by water into clay (no known …
This bediasite was reportedly found several decades ago, and it tips the scale at 49.2 grams. It comes via Mr. and Mrs. …
We started collecting meteorites in the summer of 1998. Within a few years, we came to notice an event that kept recurring: …
On February 15th, 2009 at around 11AM local time, a small asteroid entered the atmosphere and broke up over Birome, Texas. Larger …
This strewn field from New Mexico has been producing finds for over thirty years. The total known weight is still only a …
Chondrites are the most primitive group of meteorites. They have formation ages dating to at least 4.56 billion years before the present, …
Iron meteorites, with few exceptions, represent fragments from the cores of large differentiated bodies (for an explanation of differentiation, see the “achondrites” …
Achondrites are a very diverse goup of meteorites representing a wide range of developmental processes in the solar system. Some have crystallization …
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 …