Description
4.819 g specimen
Sold with label / signed certificate of authenticity
Sold with label / signed certificate of authenticity
Northwest Africa 11273 (NWA 11273)
(Northwest Africa)
Purchased: 2017 Apr
Classification: Lunar meteorite (feldspathic breccia)
History: Material excavated from a site near Tindouf, Algeria was purchased by a consortium of collectors (Rob Wesel, Eric Twelker and Jason Phillips) in April 2017 from Moroccan dealers.
Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of mineral clasts of anorthite, olivine, exsolved pigeonite, pigeonite, augite, chromite, Ti-Cr-Fe spinel, kamacite, taenite and troilite in a finer grained matrix containing small vesicles and minor barite. Rare basalt clasts and glass fragments are also present.
Geochemistry: Olivine (Fa8.7-59.7, FeO/MnO = 89-111, N = 4), pigeonite (Fs28.8Wo11.2, FeO/MnO = 56), clinopyroxene host (Fs15.3Wo40.9, FeO/MnO = 44), orthopyroxene exsolution lamella (Fs34.0Wo2.7, FeO/MnO = 56), augite (Fs16.8Wo41.7, FeO/MnO = 62), plagioclase (An95.9-96.5Or0.2, N = 2).
Classification: Lunar (feldspathic regolith breccia).
Specimens: 37 g including one polished slice at UWB; remaining pieces shared by Mr. R. Wesel, Mr. E. Twelker and Mr. J. Phillips.
This meteorite is part of the NWA 8046 clan with multiple pairings as NWA 10309, 10461, 10609, 10643, 10649, 10756, 10822, 10901, 11029, 11266, 11269, 11303, 11379, 11428, 11460, 11479, 11515, 12691, 12760 and possibly NWA 2425, 11331, 11407, 11421, 11444, 11517, 11532, 11695, 11787, 11789, 11898, 11966, 11968, 12630, 12695, 12966, 13101, 13120, 13390, 13426, 13739, 14340.
