Bondoc, Mesosiderite-B4

The story of the Bondoc mesosiderite is a remarkable one. An easy-to-read version can be found here: Al Mitterling’s Nininger Moment #27 …


Brenham, Pallasite

There’s not much on Brenham in the bulletin, but I was able to track down this paper describing the excavation of the …


Dalgaranga, Mesosiderite-A

The Dalgaranga crater was first described in 1938 by E.S. Simpson. It had been discovered by a local rancher some fifteen years …


Estherville, Mesosiderite-A3/4

Estherville was one of the most spectacular bolides yet witnessed when it tore its way through Earth’s atmosphere above Iowa in 1879.  …


Marjalahti, Pallasite-PMG

Marjalahti is one of four witnessed pallasite falls as of 2014.  The only work I was able to find that thoroughly described …


NWA 7788, Pallasite

Keeping a pallasite uncut isn’t necessarily a good thing, but this one doesn’t need a window.  It weighs 271 grams.



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 …


NWA 7803, Mesosiderite

This cute stone doesn’t have a texture that resembles any other Northwest African mesosiderites I’ve seen.  It’s also one of the least-weathered.  …