Meteoritical Bulletin, No. 108
Northwest Africa 12422
History: Found in October 2018 in the Assa-Zag
region of Morocco and purchased by Craig Zlimen
in November 2018 from a dealer in Zagora, Morocco.
Petrography: (A. Irving and
S. Kuehner, UWS) Very fine grained assemblage of mineral clasts (including
anorthite, orthopyroxene, augite, rare zoned olivine) in a partly vitreous
("swirly") and sparsely vesicular matrix containing kamacite,
chromite and troilite.
Geochemistry: Anorthite (An96.7-97.4Or0.1,
N = 2), orthopyroxene (Fs24.6-26.6Wo3.9-4.1, FeO/MnO
= 54-58, N = 2), pigeonite (Fs36.6Wo9.7, FeO/MnO =
71), augite (Fs15.3Wo40.1, FeO/MnO = 38), olivine
(core Fa15.1, FeO/MnO = 96; rim Fa24.7, FeO/MnO =
(feldspathic regolith melt breccia)
Specimens: 9.5 g in the
form of a polished endcut at UWB;
remainder with Mr. C. Zlimen.