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NWA 15418 (39.96 gram)

400 $

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[ Meteoritical Bulletin Database ]


Classification: Chondrite R3-6 S1 / W-moderate
Place/Time: 2022 in Morocco
Mass: 1376g

History: The meteorite was purchased from a meteorite dealer in Morocco.
Petrography: The meteorite is a breccia composed of up to 3 cm sized light brownish coloured mostly angular type 6 and few black impact melt clasts set in type 3 matrix with abundant chondrules. Type 6 clasts are dominated by Fe-rich olivine, diopside, and sodic plagioclase, type 3 clasts contain well defined mostly rounded chondrules with an average diameter of about 400 μm. Olivine and low-Ca pyroxene are compositionally unequilibrated. Opaques phases include pentlandite, troilite, and Ti-bearing chromite; no metal detected.
Geochemistry: type 3 lithology: olivine: Fa25.5±14.3 (Fa3.6-39.8, n=12); low-Ca pyroxene: Fs18.9±7.8Wo0.8±0.6 (Fs8.9-29.6Wo0.3-2.2, n=10); type 6 lithology: olivine: Fa39.0±0.5 (FeO/MnO=83±6, n=7); Ca-pyroxene: Fs8.8±0.7Wo46.3±0.3, n=7; feldspar: An10.2-14.4Ab84.0-87.9Or1.6-2.4, n=7
Classification: Rumuruti 3-6 breccia; likely paired with NWA 14862.