Lunar Meteorite: Northwest Africa 13225

Northwest Africa 13225 (NWA 13225)

northwestern Africa
Purchase: 2015
Mass: 200.4 g (4 pieces)

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Mohammed Hmani in 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of calcic plagioclase (including anorthite), orthopyroxene, pigeonite, subcalcic augite and rare olivine (< 2 vol.%) set in a finer grained matrix containing the same minerals plus kamacite, ilmenite and troilite. Rare olivine-free diabasic lithic clasts and glass fragments are present.

Geochemistry: Anorthite (An_95.4-97.8Or_0.1, N = 3), plagioclase (An_87.0Or_0.1), orthopyroxene (Fs_17.6-23.3Wo_2.9-3.1, FeO/MnO = 47-55, N = 2), pigeonite (Fs_25.3Wo_8.9, FeO/MnO = 47), subcalcic augite (Fs_12.1-27.0Wo_34.2-34.4, FeO/MnO = 40-57, N = 2), olivine (Fa_37.1; Fa_58.2; FeO/MnO = 94-99; N = 2).

Classification: Lunar (feldspathic breccia)

Specimens: 20.4 g including one polished mount at UWB; remainder with Mr. M. Hmani.

Randy Says…

I have not studied 13225. It may be another pair of the NWA 8046 clan.

More Information

Meteoritical Bulletin Database

NWA 13225