Meteorite Picture of the Day: Tifariti 002
from The Meteoritical Bulletin, No. 111
Lunar meteorite (feldspathic breccia)
History: Found near Bir Tiguisit, southern Morocco. Some of this material was purchased by Ziyao Wang in April 2022 from a dealer in Laayoune, Morocco.
Physical Characteristics: One large (3.4 kg) dark gray stone lacking fusion crust plus many smaller fragments (total 2.4 kg).
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of anorthite, olivine, low-Ca pyroxene, subcalcic augite and augite in a fine grained matrix containing ilmenite, Ti-chromite, baddeleyite, troilite, kamacite and taenite, plus minor secondary Fe oxides and barite.
Geochemistry: Anorthite (An97.2-97.6Or0.1-0.0, N = 3), olivine (Fa19.6-57.9, FeO/MnO = 81-92, N = 4), low-Ca pyroxene (Fs20.9-32.6Wo3.3-2.7, FeO/MnO = 52-63, N = 3), subcalcic augite (Fs41.6Wo20.9, FeO/MnO = 54), augite (Fs11.1-13.5Wo40.0-44.7, FeO/MnO = 38-45, N = 2).
Classification: Lunar (feldspathic breccia).
Specimens: 21.4 g including a polished endcut at UWB; 192 g with WangZ; remainder including the 3.4 kg main mass with Mr. S. Ben Badi.
I have not studied Tifariti 002.
Meteoritical Bulletin Database