Lunar Meteorite

[unnamed 4]

northwestern Africa


Unnamed 4 from northwestern Africa is a small oriented stone held by a private collector who does not want to cut it further. The width is about 3 cm.

(photo credit: anonymous owner)


Note how fusion crust glass has accumulated on this, the trailing, side of the meteorite.
(photo credit: anonymous owner)


This piece is from the cut portion above (~1 cm across)
(photo credit: Randy Korotev)


This is the 46 mg of material from the meteorite that we analyzed in our lab.

Despite the high fraction of light-colored clasts, the sample is rather mafic (11.5% FeO).
(photo credit: Randy Korotev)


Randy Says…

It's unfortunate that this cute little meteorite isn't "official." Compositionally, its unique.


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Prepared by: Randy L. Korotev

Department of Earth and Planetary Sciences
Washington University in St. Louis

Please don’t contact me about the meteorite you think that
you’ve found until you read this and this.



Last revised: 28 January 2018