from The Meteoritical Bulletin, No. 111
Northwest Africa 15348 (NWA 15348)
Lunar meteorite (fragmental breccia)
History: Purchased by DPitt in 2021.
Physical Characteristics: Four identical appearing stones found together. Desert weathered exterior with no fusion crust. Saw-cut surface reveals a breccia with light and dark colored clasts set in a light gray groundmass.
Petrography: (C. Agee and A. Ross, UNM) Reflected light microscopy and electron microprobe analysis indicates a lunar fragmental breccia with lithic clasts and minerals clasts. Major phases are plagioclase, olivine, pigeonite and augite. Minor phases include Low-Ni iron metal, ilmenite, troilite, and Cl-rich apatite.
Geochemistry: (A. Ross, UNM) Plagioclase An95.2±1.9Ab4.6±1.9, n=4; pigeonite Fs33.4±7.5Wo9.4±6.2, Fe/Mn=57±7, n=6; augite Fs22.1±7.6Wo38.8±3.0, Fe/Mn=50±6, n=2; olivine Fa36.9±11.9, Fe/Mn=97±5, n=8.
Classification: Lunar fragmental breccia.
Specimens: 26.5 g on deposit at UNM, DPitt holds the main mass.
I have not studied Northwest Africa 15348.
Meteoritical Bulletin Database