from The Meteoritical Bulletin, No. 109
Northwest Africa 13112 (NWA 13112)
Classification: Lunar meteorite (feldspathic breccia)
History: Purchased by Luc Labenne in June 2019 from a Moroccan dealer at the Ensisheim Show, and subsequently acquired by Theatrum Mundi.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of angular mineral grains of anorthite, orthopyroxene, pigeonite and augite plus some glass beads set in a finer grained matrix containing ilmenite, Ti chromite, troilite, pentlandite, kamacite and taenite.
Geochemistry: Olivine (Fa37.8-49.1, FeO/MnO = 81-98, N = 5), orthopyroxene (Fs33.8-37.2Wo2.5-1.8, FeO/MnO = 52-61, N = 3), pigeonite (Fs41.5Wo6.1, FeO/MnO = 63), augite (Fs25.0Wo35.4; Fs18.4Wo40.8; Fs12.5-16.3Wo45.7-42.7; FeO/MnO = 43-54; N = 5), anorthite (An94.7-96.6Or0.1, N = 3).
Classification: Lunar (feldspathic breccia).
Specimens: 20.5 g including one polished piece at UWB; main mass with Theatrum Mundi (Via Cesalpino 20, 52100 Arezzo, Italy).
I have not studied 13112.
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