Lunar Meteorite: Northwest Africa 14687

from The Meteoritical Bulletin, No. 111

Northwest Africa 14687 (NWA 14687)

(Northwestern Africa)
Purchased: 2021 September (or, 2020?)
Mass: 4900 g (1 piece)

Lunar meteorite (fragmental breccia)

History: Purchased September, 2021 by Edwin Thompson from anonymous dealer in September of 2021.

Physical Characteristics: A single grey-black stone. Saw cut fragments taken from the main mass reveal an interior with many rounded and irregular shaped clasts.

Petrography: (A. Ross, UNM; D. Dickens, NMMS; C. Agee, UNM) This meteorite is a clast-rich polymict breccia with diverse lithic fragments embedded in a fine-grained moderately vesiculated groundmass. Fragmental clasts sizes range from <0.1-10 mm and are primarily basaltic. Kamacite and ilmenite are present. This meteorite is shocked with some impact melt textures present.

Geochemistry: (A. Ross, UNM) Olivine Fa_24.9±5.1, Fe/Mn=90±7, n=10; pigeonite Fs_20.5±1.6Wo_11.0±3.8, Fe/Mn=50±4, n=9; high Ca pyroxene Fs_6.1Wo_42.0, Fe/Mn=39 n=1; plagioclase An_96.5±0.7Ab_3.3±0.7Or_0.2±0.1, n=6

Classification: Lunar Fragmental Breccia.

Specimens: 20.3 g including a probe mount on deposit at UNM, Bryce Rhodes holds the main mass

Randy Says…

I have not studied Northwest Africa 14687.

More Information

Meteoritical Bulletin Database

NWA 14687