At last nights Skeptics in the Pub a very good friend of mine, Karla, gave me an unexpected gift: a small piece of a pallasite. These meteorites are what I like to call space rock bling and I actually wrote a post about them with the same title. Pallasites are a stony-iron meteorite that have a nickel iron body (or matrix) and are studded with olivine crystals. These meteorites are thought to represent the core/mantle boundary of a differentiated planetesimal that was impacted by another object and broke apart. The iron-nickel matrix is from the core and the olivine crystals are from the mantle. The pieces became incorporated during the impact much in the same way that you work chocolate chips into dough.
Mine is labeled as the Bela Pallasite, Russia, but I don’t have much information beyond that. Pallasites discovered in Russia include the Omolon, Pallosovka, and the Krasnojarsk. There was also one found Belarus called the Brahin. I’m not sure which of those mine could be from, but it’s one of the nicest gifts I’ve received in a long time. So, with that I want to say a big thank you to Karla! She made my evening with this piece of cosmic debris and also gave me the inspiration for today’s Meteorite Monday.