The Meteoritical Bulletin, No.
Northwest Africa 11851
Meteorite (feldspathic breccia)
Found in the Azawad region of northern Mali and purchased by Habib Naji in March 2018.
characteristics: A fine grained, medium gray
stone (227 g) with macroscopically indistinct clasts; partly coated by
light brown weathering products.
(A. Irving, UWS and P. Carpenter, WUSL)
Polymict breccia consisting of small mineral clasts (anorthite, olivine,
pigeonite, augite, orthopyroxene, ilmenite, Ti-Cr-Mg-Al spinel, troilite,
merrillite, kamacite) and small lithic clasts (including gabbroic
lithologies and quench-textured melt rocks) in a finer grained matrix.
(Fa17.8-23.5, FeO/MnO = 90-127, N = 3), orthopyroxene (Fs16.1Wo3.8,
FeO/MnO = 53), pigeonite (Fs25.4-37.2Wo8.1-13.0,
FeO/MnO = 54-60, N = 3), augite (Fs44.1Wo35.6,
FeO/MnO = 62), plagioclase (An95.5-95.7Or0.5-0.3, N =
Lunar (feldspathic breccia).
22 g including one polished thin section at UWB; remainder with Mr. H. Naji.