Lunar Meteorite: Northwest Africa 14836

from The Meteoritical Bulletin, No. 111

Northwest Africa 14836 (NWA 14836)

(Northwestern Africa)
Purchased: 2020
Mass: 90 g (5 pieces)

Lunar meteorite (feldspathic breccia)

History: Purchased by Chalom Malka in 2021 by Naji C. in Morocco.

Physical Characteristics: Five pieces with slightly weathered fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is a breccia composed of mm-sized (up to 5 mm) sub-rounded lithic clasts (mostly anorthitic) set within a fine-grained matrix containing areas of melt rock (some having vesicles). Accessory phases include Fe-Ni metal, troilite, and SiO₂ glass.

Geochemistry: Olivine (Fa_30.8±4.0, range Fa_21.4-36.4, FeO/MnO=88±14, n=20), Low-Ca Pyroxene (Fs_20.9±4.9Wo_4.1±0.8, range Fs_13.8-25.1Wo_2.9-4.9, FeO/MnO=55±15, n=4), Pigeonite (Fs_27.3±3.4Wo_9.4±3.8, range Fs_22.8-32.0Wo_5.6-14.9, FeO/MnO=64±12, n=5), Augite (Fs_21.1Wo_29.6, FeO/MnO=70, n=1), Calcic Plagioclase (An_96.5±0.6, range An_95.4-97.4, n=7).

Classification: Lunar (feldspathic breccia, containing melt rock areas).

Specimens: 18.1 grams at Cascadia, main mass with Chalom Malka.

Randy Says…

I have not studied Northwest Africa 14836.

More Information

Meteoritical Bulletin Database

NWA 14836