NWA 4478 Lodranite: mystery rainbow feature


Mystery solved: UPDATE (7/28/2012):  After receiving my new microscope, I was able to view the area at much higher magnification.  I very carefully used an X-Acto knife to gently scrape the area and the film causing the rainbow does come off.  There appears to be a thin film of something on the specimen (reminds me [...]

Possible missing link between HED (Howardite, Eucrite, Diogenite) meteorite group and mesosiderites


John Higgins (IMCA member 9822) recently sent out an email on April 14, 2012 to announce the availability of a new meteorite, NWA 6953 (provisional).  Here is what he had to say: “Northwest Africa 6953 is an interesting new mesosiderite whose unique nature is a result of its composition and the collective effects of long-term [...]