Abstract
The article presents the results of a study of a new meteorite from northwest Africa. The meteorite consists of ~20–30% of chondrules, 60–70% of fine-grained matrix, refractory inclusions (CAI, AOAs, forsterite rich objects) occupy no more than 3–5%. The meteorite is carbonaceous chondrite and belongs to the petrological type CM2. The meteorite is composed of olivine, orthopyroxene, clinopyroxene, chromite, troilite, kamacite and taenite. The average size of the chondrules is 0.3 mm. Porphyritic-type chondrules predominate. The meteorite matrix consists of small fragments of olivine, pyroxene, layered silicates and iron hydroxides. CAIs are small in size (0.05–0.3 mm). The main minerals of CAI are spinel, Ca-pyroxene, hibonite and perovskite. AOA mainly contains spinel-diopside inclusions. The forsterite-rich objects are bordered by low-Ca pyroxene, represented by enstatite. Meteorite is unshocked and has low grade of terrestrial weathering (metal partially oxidized). At present, the work is underway to study and register this new carbonaceous chondrite.
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