Dhofar 1224

Found 2003 September 28

Lunar meteorite (feldspathic regolith breccia)

One 4.57 g stone, partly covered with fusion crust, was found by an anonymous prospector near the find locations of the lunar meteorites Dho 081/280/910 and Dho 302/908/1085 on a desert plateau near Wadi Quitbit, Dhofar, Oman . It was subsequently purchased by N. Classen (Classen). Classification and mineralogy (A. Irving and S. Kuehner, UWS): glass-rich, melt-matrix highland regolith breccia containing sparse, small mineral and lithic clasts.  Minerals include exsolved pigeonite, augite (Fs_21.4Wo_38.3 to Fs_24.1Wo_35.0, FeO/MnO = 54.5 - 60.7), orthopyroxene (Fs_27.6Wo_9.4 to Fs_37.1Wo_3.0, FeO/MnO = 49.8 - 50.1), olivine (Fa_27.3-46.7, FeO/MnO = 80-105), anorthite (An_99.5-99.6), metal (10 wt.% Ni and 40 wt.% Ni), ilmenite, Ti-Al-bearing chromite and troilite.  The largest lithic clast is a troctolite composed of olivine+anorthite+ilmenite.  This specimen is probably paired to Dho 081, Dho 280 and Dho 910 found nearby.  Specimens: type specimen, 1.19 g, and one polished thin section, UWS; main mass, Classen.