Lunar Meteorite (feldspathic breccia)
History: Two similar stones were found about 90 m apart at a location called Tayertand subsequently purchased by DPitt in September 2016 from a dealer in Ouarzazate, Morocco.
Physical characteristics: Two identical dark stones (total weight 9354 g) lacking fusion crust, but with a shiny exterior patina. The fresh interior is very dark and mostly fine grained, but some larger, diffuse beige-colored clasts are visible.
Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed predominantly of mineral clasts of anorthite, olivine, exsolved pigeonite, ilmenite, chromite, Cr-ulvöspinel, silica polymorph, troilite, baddeleyite and kamacite, plus some basalt clasts and glass fragments, in a finer grained matrix.
Geochemistry: Olivine (Fa4.6-56.0, FeO/MnO = 81-93, N = 4), orthopyroxene (Fs39.2Wo1.9, FeO/MnO = 59), pigeonite (Fs23.0Wo9.2, FeO/MnO = 43; Fs41.1Wo15.2, FeO/MnO = 55), subcalcic augite (Fs23.2-32.9Wo33.2-33.9, FeO/MnO = 43-47, N = 2), plagioclase (An94.8-95.9Or0.4-0.6; An58.4Or2.0; N = 3).
Classification: Lunar (feldspathic breccia).
Specimens: 20.4 g including one polished thin section at UWB; remainder with DPitt.
Tichiya (unofficially, Tichiya 001) is not paired with Tichiya 003.
Meteoritical Bulletin Database
Korotev R. L. and Irving A. J. (2021) Lunar meteorites from northern Africa. Meteoritics & Planetary Science, 206–240.