from The Meteoritical Bulletin, No. 110
Northwest Africa 14050 (NWA 14050)
Classification: Lunar meteorite (feldspathic breccia)
History: Purchased by Tom Thiegs in December 2020 from a Moroccan dealer.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of relatively small mineral clasts of anorthite, olivine, low-Ca pyroxene, subcalcic augite, augite, subcalcic ferroaugite plus rare microgabbroic lithic clasts set in a sparse fine-grained matrix containing accessory ilmenite, zircon, Ti-chromite, troilite, baddeleyite and minor secondary barite. Phases observed in BSE, from dark to bright: Ca pyroxene (Fe-rich), ilmenite, zirconolite (Y, REE present), baddeleyite, monazite (Ce>La)
Geochemistry: Olivine (Fa24.6-55.3, FeO/MnO = 89-104, N = 5), low-Ca pyroxene (Fs31.7-50.5Wo2.3-4.0, FeO/MnO = 55-61, N = 3), subcalcic augite (Fs21.7Wo31.3, FeO/MnO = 48), subcalcic ferroaugite (Fs61.8Wo31.2, FeO/MnO = 74), augite (Fs14.3Wo42.9, FeO/MnO = 56), anorthite (An96.5-98.6Or0.1-0.0, N = 3).
Classification: Lunar (feldspathic breccia).
Specimens: 14.58 g including one polished thin section at UWB; remainder with Mr. T. Thiegs.
I have not studied NWA 14050.
Meteoritical Bulletin Database