Lunar Meteorite: NWA unnamed 04

Four views of unnamed 04 (26 g). The width is about 3 cm. It is an “oriented” stone. On the left side of the right photo, note how fusion crust glass has accumulated on the trailing side. Photo credit: anonymous owner
End cut of (0.67-g ) unnamed 004, about 1 centimeter across. Photo credit: anonymous owner
Lab sample of unnamed 04. Photo credit: Randy Korotev

Randy Says…

This meteorite appears to be unpaired with any other that I have studied. It does not have a name because it was not classified (no type specimen).

I first saw this little meteorite in 2006 and do not know where it is now. I am fond of it because it is oriented and compositionally unique. Despite the numerous light-colored clasts, the rock is rather mafic (11.5 % FeO and 36 ppm Sc) because it likely contains mare basalt. Compositionally, there is no hint of KREEP (1.7 ppm Sm. I hope this one turns up in an auction some day.