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PLNClassification: Diogenite (noritic) W-low / S-moderate
Place/Time: 2025 in Algeria
Mass: 5400g
History: The meteorite was purchased from a dealer in Algeria.
Physical characteristics: Several grayish rocks with some fusion crust.
Petrography: Achondritic breccia composed of up to 5 mm sized orthopyroxene and up to 500 µm sized plagiolase crystals (about 15 vol%) in related fine-grained clastic matrix. Most low-Ca pyroxenes contain fine lamellar and blebby augite exsolutions. Minor phases include chromite, trolite, and Ni-free metallic iron. Contains shock melt veins and pockets.
Geochemistry: low-Ca pyroxene: Fs32.1±0.1Wo1.9±0.1 (Fs31.9-32.2Wo1.8-2.1, FeO/MnO=29-31, n=7); Ca-pyroxene: Fs12.8±0.2Wo44.2±0.2 (Fs12.3-13.2Wo43.5-44.6, FeO/MnO=19-24, n=7); calcic plagioclase: An93.2±0.5 (An92.6-94.1, n=7)
CONDITION: Full slice, 2 side polished
