OFFICIAL NWA 3133 Very Important New PAC Meteorite 2.20g
2.20 gram end cut of NWA 3133, a one-of-a-kind Anomalous Primitive Achondrite (Metachondrite) found 2004 in the Sahara desert. Some may ask: OK, another Primitive Achondrite -- What is the big deal? First of all, primitive achondrites are rarer than planetary meteorites and anomalous specimens are among the rarest. Let me tell you the history of this material first and then try to explain its importance.
NWA 3133 was first thought to be a Brachinite or a recrystallized chondrite prompting the two laboratories, Northern Arizona University and the University of Washington, to seek oxygen isotope testing, a way to determine its final classification. A specimen was submitted to the University of Western Ontario for this very purpose. The results were received in June and they plotted so far away from any known achondrite that one scientist had to ask, "How is this possible?" The results were so outrageous and potentially significant that it was decided to send out a second specimen for confirmation. The second specimen was sent blind to the Geophysical Laboratory in Washington D.C. for analysis. The results confirmed the important findings at the University of Western Ontario: NWA 3133 oxygen isotopes plot further away from the Earth-Moon line than any known achondrite including NWA 011.