NWA 11436 Rumuruti 3-6 Chondrite Meteorites for Sale
Location: Northwest Africa,location unknown.
Purchased: 2017.
Type: Rumuruti Chondrite (R3-6)
Description: Petrography : Chondritic breccia, consisting of light and dark chondritic clasts, embedded in a matrix of isolated chondrules and chondritic debris. Most dark clasts represent chondritic lithologies of type 3, but some shock-darkened chondritic clasts also occur. Light clasts are strongly metamorphosed and belong to the petrologic type 6. Geochemistry : Mineral compositions and geochemistry: Clasts of petrologic type 3: mean olivine composition Fa 25.5±15.3 (0.4-50.0); n=20; mean low-Ca pyroxene composition Fs 7.4±5.5 (1.1-17.8), Wo 1.1±0.9 (0.1-3.4), n=15. Clasts of petrologic type 6: mean olivine composition Fa 38.9±0.5 (38.0-39.7); n=11; mean pyroxene composition Fs 11.7±0.5 (10.9-12.4), Wo 44.4±0.7 (43.4-45.6), n=9. Accessories are pentlandite and chromite; no metal was found. Classification : R chondrite based on mineral chemistry. Genomict breccia, consisting of clasts of petrologic type 3 (unequilibrated olivine and pyroxene) and type 6 (equilibrated olivine and pyroxene; plagioclase grains >50 µm)
Link to Meteoritical Bulletin Database.
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# NWA11436-16-3 |
Weight: 16.3 gm |
Features: Part slice. |
$331 |