Lunar Meteorite: Laâyoune 002 and 003
assumed paired stones
from The Meteoritical Bulletin, No. 111 Laâyoune 002Saguia el Hamra, Western Sahara Lunar meteorite (feldspathic breccia) History: Found near Laayoune, Morocco, in January 2022 and purchased from the finder by Aziz Habibi. Physical characteristics: Both stones (3680 g, 1468 g) lack fusion crust and have a similar overall gray color with some whitish clasts visible. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of anorthite, olivine, orthopyroxene, pigeonite and augite plus accessory ilmenite, chromite (with variable Ti content) and minor secondary barite. Geochemistry: Olivine (Fa46.3-46.7, FeO/MnO = 94-98, N = 4), orthopyroxene (Fs33.5Wo3.8, FeO/MnO = 57), pigeonite (Fs36.9-45.1Wo6.5-8.4, FeO/MnO = 57-64, N = 3), augite (Fs19.1-20.9Wo39.1-39.7, FeO/MnO = 53-54, N = 2), anorthite (An96.1-97.7Or0.3-0.1, N = 3). Classification: Lunar (feldspathic breccia). Specimens: 20.7 g in the form of a polished endcut at UWB; remainder with Mr. A. Habibi. |
from The Meteoritical Bulletin, No. 112 Laâyoune 003Saguia el Hamra, Western Sahara Lunar meteorite (feldspathic breccia) History: Bought by Emilie Cèbe and Arnaud Valz-Blin (Eclectic-Art) on July 16, 2022, from Jérémy Bassemon, who had bought the material from an Algerian dealer. Physical characteristics: Many cm-sized light gray fragments. Petrography: (J. Gattacceca, CEREGE) Mineral clasts of mostly anorthite and pyroxene set in a glassy feldspathic matrix. Clasts are up to 1 mm, most of them a few 100 µm. Accessory minerals: chromite, ilmenite, and secondary barite. Rare metal, including grains Ni rich grains (up to 25 wt% Ni). Geochemistry: Pigeonite Fs29.8±1.3Wo6.0±1.2, FeO/MnO = 64.5±6.9 (n=4). Anorthite An95.7Ab4.0Or0.3 (n=4). Classification: Lunar (feldspathic breccia). Specimens: Type specimen at CEREGE. Main mass with Robert Joulin, and some material with Emilie Cèbe and Arnaud Valz-Blin (Eclectic-Art). |
Randy Says… I have not studied Laâyoune 002 and 003. Despite that the petrographic descriptions are not self-evidently similar I assume that the meteorites are paired because the reported find locations are 0.2 km apart. NWA 16531 may be another stone of the pairing. |