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PLNClassification: Lunar feldspathic melt breccia W-low / S-high
Place/Time: 2025 in gao, Mali
Mass: 630g
History: The meteorite was found during a search in Mali and subsequently purchased by the main mass holder.
Physical characteristics: Dark grayish rock with some fusion crust.
Petrography: The meteorite is a melt-breccia predominantly composed of up to 0.7 mm sized lithic clasts (gabbroic, basaltic, and melt clasts) and up to 5 mm sized white anorthite fragments plus smaller olivine, exsolved pyroxene, and low-Ca pyroxene grains all set in a partly glassy melt rock matrix showing flow textures. Fine-grained, clast-rich regions appear darker than more melt-rich lithologies. Minor phases include ilmenite, spinel, troilite, and kamacite. The meteorite is highly shocked and all plagioclase has been converted into maskelynite.
Geochemistry: olivine: Fa18.2±0.1 (Fa18.0-18.3, FeO/MnO=83±7; n=5); magnesian olivine: Fa8.4±0.2 (Fa8.2-8.6, FeO/MnO=75±3; n=3); low-Ca pyroxene host to exsolution lamellae: Fs40.4±0.2Wo2.0±0.2 (Fs40.1-40.6Wo1.7-2.4, FeO/MnO=70±3, n=5); Ca-pyroxene exsolution lamellae: Fs17.0±0.1Wo42.8±0.3 (Fs16.8-17.2Wo42.3-43.1, FeO/MnO=57±7, n=5); low-Ca pyroxene: Fs23.7±0.5Wo5.0±0.3 (Fs23.2-24.4Wo4.6-5.4, FeO/MnO=48±4, n=5); calcic plagioclase: An90.6±0.9 (An89.6-91.9, n=5)
NOTE: slices about ~2.2mm thick two side polished
