Lunar Meteorite: Ajdabiya 001
| from The Meteoritical Bulletin, No. 112 Ajdabiya 001Ajdabiya, Libya Lunar meteorite (melt breccia) History: Found in 2021 in Libya and purchased by Adam Aaronson and Ahmed Salek in April 2021 from a dealer in Ajdabiya, Libya. Physical Characteristics: The specimens (total weight 28.8 kg) are distinctive in having relatively closely packed and unusually large, angular, light-gray lithic clasts (up to 2 cm) within a sparse dark, fine-grained matrix. Petrography: (A. Irving, UWS, and P. Carpenter, WUSL) Breccia composed of angular lithic clasts and related crystalline debris within a sparse fine-grained and in part microvesicular matrix. Portions of the glassy matrix exhibit streaky flow-banding. Clast lithologies include spinel troctolite and quench-textured basaltic rocks. Minerals include anorthite, olivine, low-Ca pyroxene, exsolved pigeonite, augite, ilmenite, chromite (with variable Ti content), Fe-Cr-bearing spinel:, kamacite and troilite. Geochemistry: Olivine (Fa27.3-45.5, FeO/MnO = 86-101, N = 5), low-Ca pyroxene (Fs27.8-40.8Wo2.4-4.6, FeO/MnO = 52-63, N = 5), augite (Fs19.0-22.0Wo44.0-41.6, FeO/MnO = 46-50, N = 2), anorthite (An94.8-97.4Or0.1-0.0, N = 4). Classification: Lunar (feldspathic melt matrix breccia). Specimens: 26.4 g in the form of a polished endcut at UWB; remainder with Aaronson. |
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More InformationMeteoritical Bulletin Database Ajdabiya 001 |